Supriyatno, S. . Riyanto, L. C. . Nawangsari, and A. . Arijanto, “Green Leadership and Sustainable Employee Engagement in Driving Organizational Citizenship Behavior for the Environment (OCBE): A Systematic Literature Review”, J HUM SOC STUD, vol. 10, no. 02, pp. 955–964, Aug. 2026.