Dong Phuong, N.T., Ai Thuy, L.H. and Trang Viet, B. 2020. Effect of plant growth regulators on growth and lipid accumulation of microalgal Haematococcus pluvialis Flotow in two-stage culture. Vietnam Journal of Biotechnology. 16, 4 (Aug. 2020), 679–686. DOI:https://doi.org/10.15625/1811-4989/16/4/12840.