[1]
Kuswoyo, F. . Tentama, and P. . Muhopilah, “Altruism Scale: A Psychometric Study for Junior High School Student”, IJSBAR, vol. 51, no. 2, pp. 208–219, May 2020, Accessed: Sep. 12, 2025. [Online]. Available: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/10818