Amna Rachmat, Fauzia, Melia Eka Lestiani, and Erna 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 8, no. 11 (November 5, 2026): 1012 –. Accessed November 5, 2026. https://journal-laaroiba.com/ojs/index.php/reslaj/article/view/13490.