TUMANGGGOR, Ester Lina Br; BRAHMANA, Karina. Hubungan Kebersyukuran dengan Kebahagiaan pada Tukang Becak di Kota Medan. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 4, p. 2799–2813, 2023. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/3815. Acesso em: 4 jun. 2026.