Purba, Mangapoi E.H.A., Alamsyah, S.T., M.T., and Wira Setiawan, S.T., M.T. “Kajian Kekuatan Pontoon Lift Dengan Penambahan Upper Deck Dan Lower Deck Menggunakan Metode SFBM”. SPECTA Journal of Technology 6, no. 1 (April 25, 2022): 25–34. Accessed July 4, 2025. https://journal.itk.ac.id/index.php/sjt/article/view/331.