SIALLAGAN, Saskia; PASARIBU, Payerli. Strategi Membangun Solidaritas pada Persekutuan Remaja Naposobulung HKBP Air Bersih. SAKOLA: Journal of Sains Cooperative Learning and Law, [S. l.], v. 1, n. 2, p. 271–278, 2024. DOI: 10.57235/sakola.v1i2.3271. Disponível em: https://rayyanjurnal.com/index.php/sakola/article/view/3271. Acesso em: 26 jun. 2026.