Masbaitubun, E. T., J. Riry, and M. A. Lasaiba. “Seaweed Productivity in Warbal Village, Southeast Maluku Regency, Maluku Province”. Jurnal Pendidikan Geografi Unpatti, Vol. 2, no. 3, Dec. 2023, pp. 244-51, doi:10.30598/jpguvol2iss3pp244-251.