Wulandari, R. “Altruism: A Study of the Form of Mechanical Solidarity of Urban Communities in Denpasar City”. ICHELSS: International Conference on Humanities, Education, Law, and Social Sciences, Vol. 2, no. 1, Nov. 2022, pp. 867-7, https://journal.unj.ac.id/unj/index.php/hispisi/article/view/30992.