Nurhikma, N., and F. M. Assidiq. “Analysis of Flow Changes in the SPAR Model (4VP)”. Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan, vol. 5, no. 1, Mar. 2024, pp. 37-43, doi:10.62012/zl.v5i1.31624.