T. Adiprasetyo, B. Purnomo, M. Handajaningsih, and H. Hidayat, “The Usage of BIOM3G-Biofertilizer to Improve and Support Sustainability of Land System of Independent Oil Palm Smallholders”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 4, no. 5, pp. 345–348, Oct. 2014.