Huanbutta, K., M. Luangtana-anan, P. Sriamornsak, S. Limmatvapirat, S. . Puttipipatkhachorn, and J. . Nunthanid. “Factors Affecting Preparations of Chitosan Microcapsules for Colonic Drug Delivery”. Journal of Metals, Materials and Minerals, vol. 18, no. 2, Apr. 2017, https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/315.