(1)
Yanqoritha, N.; Sinurat, S.; Kuswandi; Handayani, M. F.; Sulhatun; Suryati. The Effort to Improve Water Quality of the Pemandian Alam Tourism in Batu Mbelin Village, North Sumatera. Indonesian J. Com. Serv. Cel. 2022, 1, 26-35.