Amna Rachmat, F., M. Eka Lestiani, and E. Mulyati. “Development of a Sustainable Logistics Service Level Agreement (SLSLA) Model: A Partial Least Squares Structural Equation Modeling and Measurable Index Approach”. Reslaj: Religion Education Social Laa Roiba Journal, vol. 8, no. 11, Nov. 2026, pp. 1012 -, doi:10.47467/reslaj.v8i11.13490.