Identify coal distribution based on resistivity values using the Wenner configuration geoelectric method in Petai Village, Singingi Hilir District, Kuantan Singingi Regency Hijrah Septia Anisa ; Usman Malik ; Krisman Sabar ; Sherly Mutiara Komunikasi Fisika Indonesia 8 Sep 2026 10.31258/jkfi.21.1.73-78
