Grace Merry Nainggolan, Judita, Afrizal Tanjung, and Irwan Effendi. 2018. “GROWTH OF Spirulina Platensis IN INDOOR AND SEMI OUTDOOR CULTURING SYSTEMS”. Asian Journal of Aquatic Sciences 1 (1), 22-28. https://doi.org/10.31258/ajoas.1.1.22-28.