Tharawetcharak, P. ., S. . Vorarat, and A. . Phdungsilp. “A Study of New Gravitational Coefficient Function in Gravitational Search Algorithm for the One-dimensional Bin Packing Problem”. Journal of Advanced Development in Engineering and Science, vol. 13, no. 36, Apr. 2023, pp. 14-24, https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/576.