Utomo, N. et al. 2007. Growth of Spirulina platensis Cultured with Inorganic Fertilizer (Urea, TSP and ZA) and Chicken Manure. Jurnal Akuakultur Indonesia. 4, 1 (Jan. 2007), 41–48. DOI:https://doi.org/10.19027/jai.4.41-48.