Huanbutta, K., Luangtana-anan, M., Sriamornsak, P., Limmatvapirat, S., Puttipipatkhachorn, S. and Nunthanid, J. 2017. Factors affecting preparations of chitosan microcapsules for colonic drug delivery. Journal of Metals, Materials and Minerals. 18, 2 (Apr. 2017).