A matrix-free quasi-Newton method for solving large-scale nonlinear systems WJ Leong, MA Hassan, MW Yusuf Computers & Mathematics with Applications 62 (5), 2354-2363, 2011 | 37 | 2011 |

A genetic algorithm with fuzzy crossover operator and probability M Jalali Varnamkhasti, LS Lee, MR Abu Bakar, WJ Leong Advances in Operations Research 2012, 2012 | 36 | 2012 |

A new Newton’s method with diagonal Jacobian approximation for systems of nonlinear equations MY Waziri, WJ Leong, MA Hassan, M Monsi Journal of Mathematics and Statistics 6 (3), 246-252, 2010 | 36 | 2010 |

A monotone gradient method via weak secant equation for unconstrained optimization WJ Leong, MA Hassan, M Farid Taiwanese Journal of Mathematics 14 (2), 413-423, 2010 | 32 | 2010 |

A new gradient method via quasi-Cauchy relation which guarantees descent MA Hassan, WJ Leong, M Farid Journal of Computational and Applied Mathematics 230 (1), 300-305, 2009 | 29 | 2009 |

An improved parameter regula falsi method for enclosing a zero of a function NA Bakar, M Monsi, N Hassan Applied Mathematical Sciences 6 (28), 1347-1361, 2012 | 27 | 2012 |

A numerical approach for solving singular nonlinear Lane–Emden type equations arising in astrophysics AK Nasab, A Kılıçman, ZP Atabakan, WJ Leong New Astronomy 34, 178-186, 2015 | 26 | 2015 |

Jacobian computation-free Newton method for systems of Non-Linear equations MY Waziri, WJ Leong, MA Hassan, M Monsi Journal of numerical Mathematics and stochastic 2 (1), 54-63, 2010 | 26 | 2010 |

New quasi-Newton methods via higher order tensor models F Biglari, MA Hassan, WJ Leong Journal of computational and applied mathematics 235 (8), 2412-2422, 2011 | 23 | 2011 |

Multi-objective method for divisible load scheduling in multi-level tree network S Ghanbari, M Othman, MRA Bakar, WJ Leong Future Generation Computer Systems 54, 132-143, 2016 | 22 | 2016 |

Potential human health risk assessment of heavy metals via the consumption of tilapia Oreochromis mossambicus collected from contaminated and uncontaminated ponds CK Yap, A Jusoh, WJ Leong, A Karami, GH Ong Environmental monitoring and assessment 187 (9), 584, 2015 | 21 | 2015 |

A new two-step gradient-type method for large-scale unconstrained optimization M Farid, WJ Leong, MA Hassan Computers & Mathematics with Applications 59 (10), 3301-3307, 2010 | 20 | 2010 |

A restarting approach for the symmetric rank one update for unconstrained optimization WJ Leong, MA Hassan Computational Optimization and applications 42 (3), 327-334, 2009 | 20 | 2009 |

Improved Hessian approximation with modified secant equations for symmetric rank-one method F Modarres, AH Malik, WJ Leong Journal of computational and applied mathematics 235 (8), 2423-2431, 2011 | 19 | 2011 |

On the interval zoro symmetric single-step procedure for simultaneous finding of polynomial zeros SFM Rusli, M Monsi, MA Hassan, WJ Leong Applied Mathematical Sciences 5 (75), 3693-3706, 2011 | 19 | 2011 |

The hybrid BFGS-CG method in solving unconstrained optimization problems MAH Ibrahim, M Mamat, WJ Leong Abstract and Applied Analysis 2014, 2014 | 17 | 2014 |

A two-step matrix-free secant method for solving large-scale systems of nonlinear equations MY Waziri, WJ Leong, M Mamat Journal of Applied Mathematics 2012, 2012 | 16 | 2012 |

A New conjugate gradient coefficient for large scale nonlinear unconstrained optimization M Rivaie, M Mamat, WJ Leong, M Ismail Int. Journal of Math. Analysis 6 (23), 1131-1146, 2012 | 14 | 2012 |

Scaling on diagonal quasi-Newton update for large-scale unconstrained optimization WJ Leong, M Farid, MA Hassan Bulletin of the Malaysian Mathematical Sciences Society 35 (2), 247-256, 2012 | 14 | 2012 |

Jacobian-free diagonal Newton’s method for solving nonlinear systems with singular Jacobian MW Yusuf, LW June, MA Hassan Malaysian Journal of Mathematical Sciences 5 (2), 241-255, 2011 | 14 | 2011 |