V. Chrisnawati, B. S. Rahardja, and W. H. Satyantini, “The Influence of Giving Probiotic with Different Periodicon Decreasing of Ammonia And Total Organic Matter in White Shrimp Culture Media (Litopenaeus Vannamei)”, JMCS, vol. 7, no. 2, pp. 68–77, Jul. 2020.