P. Villaber, R. A., F. E. Merca, L. M. Fernando, T. D.C. Villar, and C. C. de Guzman. “Encapsulation of Bacteria-Derived Auxin, Cytokinin and Gibberellin and Its Application in the Micropropagation of Coconut (Cocos Nucifera L. Var Makapuno)”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 27, no. 1, May 2016, pp. 37-56, https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/5276.