T. M. Setyoningrum, V. A.W., A. A, N. I. Putra, and M. M. Azimatun Nur, “Evaluation of C/N Ratio in Spirulina platensis Cultivation using Molasses Addition as Organic Carbon Source”, Eksergi, vol. 11, no. 2, pp. 30–34, Dec. 2014.