M. S. A. Sinulingga, S. Hutabarat, and N. Novian, “Participant of Smallholders in Rubber to Oil Palm Conversion Activities at Wisma Tani KUD Rokan Hulu Regency”, J. ilm. sosio-ekon. bisnis, vol. 26, no. 01, pp. 1–10, Jun. 2024.