Zachawerus, Trifany, et al. “Morfometric Study of Seagrass Thalassia Hemprichii, in Pasir Panjang Beach, Paputungan Village, West Likupang, Minahasa Utara”. Jurnal Ilmiah PLATAX, vol. 7, no. 1, Jan. 2019, pp. 178-85, doi:10.35800/jip.7.1.2019.22731.