M. E. Mahata, Ardi, and Y. Rizal, “Selection of Local Microorganism Solutions as Crude Fiber Digester in Areca catechu L. Peel Waste for Producing Poultry Feed Additives”, Int. J. Poult. Sci., vol. 18, no. 2, pp. 58–62, Jan. 2019, doi: 10.3923/ijps.2019.58.62.