[1]
F. Suarantika and N. H. Akbar, “Validation of Analytical Methods of Several Secondary Metabolic Compounds in Andrographis paniculata, Zingiber officinale var. rubrum, and Nigella sativa as COVID-19 Therapy: A Review”, JINTO, vol. 8, no. 1, pp. 69–79, Mar. 2022.