Ikhsan, M. I., R. Yulida, and F. Restuhadi. “The Correlation Internal and Eksternal Characteristics With Communication Networks Self-Help Rubber Farmer in Batu Bersurat Village XIII Koto Kampar District”. Journal of Agribusiness and Community Empowerment (JACE), vol. 3, no. 1, Mar. 2020, pp. 27-36, doi:10.32530/jace.v3i1.120.