ChristwardanaM. and HadiyantoH. 2018. The Effects of Audible Sound for Enhancing the Growth Rate of Microalgae Haematococcus pluvialis in Vegetative Stage. HAYATI Journal of Biosciences. 24, 3 (Mar. 2018), 149. DOI:https://doi.org/10.4308/hjb.24.3.149.