Thom, L. T., Tam, L. T., Mai, D. N., Lan Anh, H. T., Hoai Thu, N. T., Ha, N. C., & Hong, D. D. (2013). Effect of nitrate concentration on growth of green microalga Haematococcus pluvialis under laboratory conditions. Academia Journal of Biology, 35(2), 219–226. https://doi.org/10.15625/0866-7160/v35n2.3108