“Perhitungan Efisiensi Biaya Pekerjaan Langit-Langit: Plafon Triplek Vs Plafon GRC”. Jurnal Ilmu Teknik Sipil Indonesia 2, no. 2 (July 31, 2026): 103–108. Accessed August 10, 2026. https://sihojurnal.com/index.php/jitesna/article/view/1958.