Chaiyasat, A., Cheanjai, R., Kaewdee, P., Threeprom, J. and Chaiyasat, P. (2018) “Hollow poly-l-lactic acid microbead prepared by phase inversion emulsification technique with a simple solvent evaporation”, Journal of Applied Research on Science and Technology (JARST), 17(2), pp. 41–53. available at: https://ph01.tci-thaijo.org/index.php/rmutt-journal/article/view/157103 (accessed: 27 August 2026).