Azizah, N., Prakoso, C.T. and Saipul, S. 2026. Implementation of the RSPO International Standard: Evaluation of Substantive Success and Systemic Constraints for Oil Palm Smallholders. SIGn Journal of Social Science. 6, 2 (Mar. 2026), 423-442. DOI:https://doi.org/10.37276/sjss.v6i2.669.