A HYDROGEOLOGY RESEARCH BY USING SCHLUMBERGER GEO-ELECTRIC METHOD IN DISTRICT HAMPARAN PERAK, DELI SERDANG, NORTH SUMATERA. MEA [Internet]. 30 Maret 2016 [dikutip 17 Oktober 2026];1(1):156-61. Tersedia pada: https://jurnal.abulyatama.ac.id/index.php/mea2016/article/view/579