Silaban, R., J. A. Rahajaan, and M. H. Ohoibor. “Density and Diversity of Sea Cucumbers (Holothuroidea) in Letman Waters, Southeast Maluku”. Jurnal Sumberdaya Akuatik Indopasifik, vol. 6, no. 4, Nov. 2022, pp. 361-76, doi:10.46252/jsai-fpik-unipa.2022.Vol.6.No.4.236.