Senula, A., and E. R Joachim Keller. 2009. “GERMPLASM PRESERVATION BY CRYOPRESERVATION: USE OF NEW BIOTECHNOLOGY TO MAINTAIN GENETIC DIVERSITY IN LABIATAE SPECIES”. African Journal of Traditional, Complementary and Alternative Medicines 6 (April):353. https://journals.athmsi.org/index.php/ajtcam/article/view/703.