“Short Communication Effect of Plant Growth Regulators on Production of Vindoline in the Callus of Catharanthus roseus”, Pakistan Journal of Scientific & Industrial Research, vol. 50, no. 5, pp. 352–354, Oct. 2007, Accessed: Mar. 21, 2026. [Online]. Available: https://www.biostaging.pjsir.org/index.php/biological-sciences/article/view/1038