Prasetyo, H.; Setyaningsih, I.; Agungpriyono, D. R. Growth and Extracelluler Polysaccaride Production of Porphyridium Cruentum In Various Photoperiod. JPHPI 2015, 18 (2), 219-229. https://doi.org/10.17844/jphpi.v18i2.12882.