A. K. Yusim and I. K. A. P. Utama 2025. An Investigation Into The Drag Increase on Roughen Surface due to Marine Fouling Growth. IPTEK The Journal for Technology and Science. 28, 3 (Jul. 2025), 73–78. DOI:https://doi.org/10.12962/j20882033.v28i3.4408.