Mumtaz Khan, Muhammad, Syed Saad Ahmed, and Essa Khan, trans. “Green Spillover: Deriving Pro-Environmental Behavior on Job and Off-Job through Environmental Specific Servant Leadership”. Pakistan Business Review 23, no. 1 (November 23, 2021). Accessed April 2, 2026. https://journals.iobm.edu.pk/index.php/pbr/article/view/466.