[1]
Mirnawati, A. Djulardi, and G. Ciptaan, “Role of Humic Acid in Improving the Nutrient Content and Quality of Fermented Palm Oil Sludge”, Pak. J. Nutr., vol. 16, no. 7, pp. 538–543, Jun. 2017, doi: 10.3923/pjn.2017.538.543.