Vikram, P. ., I. H. A. . Ripain, K. K. . Chiruvella, and M. . Arifullah. “Rapid Induction of Somatic Embryos and Production of Synthetic Seeds from Hempedu Bumi (Andrographis Paniculata) - A Malay Ethnomedicinal Plant”. Journal of Tropical Resources and Sustainable Science (JTRSS), vol. 3, no. 1, May 2015, pp. 34-38, doi:10.47253/jtrss.v3i1.683.