R. Rusdi, A. Hasanuddin, and R. Arief, “In vitro Evaluation of Coconut Husk Potential as Phytobiotics for Poultry”, Int. J. Poult. Sci., vol. 18, no. 3, pp. 109–115, Feb. 2019, doi: 10.3923/ijps.2019.109.115.