N. C. Ha, H. T. Minh Hien, L. T. Thom, H. T. Huong Quynh, and D. D. Hong, “Optimization of fermentation conditions for squalene production by heterotrophic marine microalgae Schizochytrium mangrovei PQ6”, AJB, vol. 39, no. 3, pp. 349–358, Nov. 2017.