Hartuti, Tentama F, Abdillah MH, Alifah RN. Physical Self, Social Self, Psychological Self, and Moral Self in Reflecting Self-Concept. IJSBAR. 2020;54(1):158-169. Accessed October 12, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/11525