Arief, Elihasridas, S. Somen, E. Roza, R. Pazla, and Rizqan, “Production and Quality of Etawa Raw Milk Using Palm Oil Industry Waste and Paitan Plants as an Early Feed”, Pak. J. Nutr., vol. 17, no. 8, pp. 399–404, Jul. 2018, doi: 10.3923/pjn.2018.399.404.