A. Afrizon, R. Ruswendi, Y. Oktavia, A. Ishak, E. Fauzi, and S. Yuliasari, “Farmers ’Response To The Nature Of Innovation Pakuwon Biofertilizer Technology To Stimulate Simultaneous Flowering of Coffee Plants”, AGRITEPA, vol. 8, no. 1, pp. 9-18, May 2021.