PERBEDAAN KESEJAHTERAAN PSIKOLOGIS LANSIA DITINJAU DARI BENTUK DUKUNGAN TEMAN SEBAYA : THE DIFFERENCES IN PSYCHOLOGICAL WELL-BEING OF THE ELDERLY IN TERMS OF SHAPE PEER SUPPORT ABSTRACT . Psikologia: Jurnal Pemikiran dan Penelitian Psikologi, [S. l.], v. 13, n. 2, p. 59–73, 2019. DOI: 10.32734/psikologia.v13i2.2268. Disponível em: https://idjpcr.usu.ac.id/jppp/article/view/2268. Acesso em: 14 aug. 2025.