Panggabean, I. A., J. Samiaji, and E. Efriyeldi. “INVENTORY OF SEA CUCUMBER SPECIES (Holothuroidea) IN THE WATERS OF PANDARATAN BEACH SARUDIK DISTRICT, CENTRAL TAPANULI REGENCY, NORTH SUMATRA”. Asian Journal of Aquatic Sciences, Vol. 4, no. 3, Dec. 2021, pp. 178-84, doi:10.31258/ajoas.4.3.178-184.