Kuanchertchoo, N., W. Mongkolvisuit, W. Fangtawanit, D. P. Kashima, and S. Tansuwan. “Development of Nanosized Hydroxyapatite from Biowaste for Variety Applications”. Ramkhamhaeng Research Journal of Sciences and Technology, vol. 22, no. 2, Dec. 2019, pp. 88-97, https://li01.tci-thaijo.org/index.php/rusci/article/view/232528.