Studi Kelayakan Perbandingan PLTS Rooftop 15kWp dan 20kWp di Gereja Katolik Paroki St. Konrad Martubung Menggunakan Software PVSyst . elementer [Internet]. 2026 May 31 [cited 2026 Sep. 20];12(1):56-62. Available from: http://ns1.pelatihan-osn.com/index.php/elementer/article/view/7022