Mohd Zulfanis, Marissa, and Shahmir Hayyan Sanusi. “A Review on The Efficacy of Seashell’s Waste As Alternative Abrasive Agent in Toothpaste”. Research Progress in Mechanical and Manufacturing Engineering 3, no. 1 (August 14, 2022): 862–874. Accessed May 6, 2024. https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/6553.