Manubulu, Christiani Chandra, Merzy Mooy, and Efraim Cristiano Da Grus. “ANALISIS ELEMEN HINGGA LINE ELEMEN PADA PORTAL 3D”. Journal of Civil Engineering 17, no. 1 (February 28, 2023): 52–60. Accessed September 11, 2025. http://114.6.41.75/index.php/PROKONS/article/view/5403.