Liemika, Firma, and Effy Wardati Maryam. “Social Loafing of Members of the MAPALA Organization in Sidoarjo”. Indonesian Journal of Innovation Studies 21 (January 30, 2023): 10.21070/ijins.v21i.795. Accessed July 22, 2024. https://ijins.umsida.ac.id/index.php/ijins/article/view/795.