Parameter Estimation of Damped Compound Pendulum Using Bat AlgorithmMohd Sazli Saad, Luqman Nul Hakim Mat Deri, Z. Shayfull, S.M. Nasir and M. FathullahMATEC Web Conf., 78 (2016) 01118DOI: https://doi.org/10.1051/matecconf/20167801118