Murugan, Puvanasundari, and Suhaila Mohd.Yasin. “Development of Chemical Management System for UTHM”. Applied Information Technology And Computer Science, vol. 3, no. 2, Nov. 2022, pp. 1534-51, https://penerbit.uthm.edu.my/periodicals/index.php/aitcs/article/view/7550.