S. R. Siregar, L. Elida, and R. T. Siregar, “The Influence of Perceived Agrarian Injustice and the Sense of Oppression on Farmers’ Collective Mobilization: A Study of the Komite Tani Tano Jaya Mandiri (KTTJM) in Aek Nabara Barumun Subdistrict, Padang Lawas Regency”, JSIH, vol. 5, no. 2, pp. 311–328, Jul. 2026.