Hutapea, P. S., L. Abdullah, P. D. M. H. Karti, and I. Anas. “Improvement of Indigofera Zollingeriana Production and Methionine Content through Inoculation of Nitrogen-Fixing Bacteria”. Tropical Animal Science Journal 41, no. 1 (April 6, 2018): 37–45. Accessed January 13, 2026. https://journal.ipb.ac.id/tasj/article/view/20950.