Natanael Bangun; Cut Nuraini; Abdi Sugiarto. Optimization of Drainage System on Jalan Sisingamangaraja to Overcome Flooding in Tigalingga Village, Dairi Regency. Equivalent 2026, 4 (1), 1445-1454. https://doi.org/10.61994/equivalent.v4i1.1830.