Ngamsaeng, A., Wanapat, M., & Khampa, S. (2006). Effects of Mangosteen Peel (Garcinia mangostana) Supplementation on Rumen Ecology, Microbial Protein Synthesis, Digestibility and Voluntary Feed Intake in Cattle. Pakistan Journal of Nutrition, 5(5), 445-452. https://doi.org/10.3923/pjn.2006.445.452