(2021). Kapal. Department of Naval Architecture, Faculty Engineering, Diponegoro University.
Citazione stile Chigago Style (17a edizione)Kapal. Department of Naval Architecture, Faculty Engineering, Diponegoro University, 2021.
Citatione MLA (9a ed.)Kapal. Department of Naval Architecture, Faculty Engineering, Diponegoro University, 2021.
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