Lieng, L., Efriyeldi, E. and Thamrin 2020. DENSITY ZOOXANTHELLA BASED ON THE LIFE FORM OF CORAL ON MARAK ISLAND WEST SUMATERA PROVINCE. Asian Journal of Aquatic Sciences. 3, 3 (Dec. 2020), 209-216. DOI:https://doi.org/10.31258/ajoas.3.3.209-216.