Sembiring, Haesti, Riyanto Suprawadi, and Nelson Tanjung. 2022. “TRAINING ON MAKING CLEAN WATER PROCESSING UNITS FOR PERMANENT RESIDENTIAL COMMUNITIES I NANGBELAWAN VILLAGE I SIMPANG EMPAT DISTRICT KARO REGENCY: PELATIHAN PEMBUATAN UNIT PENGOLAH AIR BERSIH MASYARAKAT HUNIAN TETAP I DESA NANGBELAWAN I KECAMATAN SIMPANG EMPAT KABUPATEN KARO”. Indonesian Journal of Engagement, Community Services, Empowerment and Development 2 (2):175-81. https://doi.org/10.53067/ijecsed.v2i2.56.