Purba, Dian Rizki, et al. “Effect of Supplementation ARA (Arachidonic Acid) Oil on Production Performance, Egg Quality and Fatty Acid Composition in Laying Hens”. International Journal of Science, Technology & Management, vol. 2, no. 4, July 2021, pp. 1164-7, doi:10.46729/ijstm.v2i4.241.