Lubis, L. S., S. Edwina, and E. Maharani. “Role and Purpose of The Farmer Group Corn A Corn and Cow Integration System in Tenayan Raya District Pekanbaru City”. Journal of Agribusiness and Community Empowerment (JACE), vol. 4, no. 1, Mar. 2021, pp. 30-42, doi:10.32530/jace.v4i1.203.