Naqvi, B., and Y. Tariq. “Effect of Growth Regulators for in-Vitro Mass Multiplication of Marigold: In Vitro Growth of Marigold”. Biological Sciences - PJSIR, vol. 54, no. 3, Dec. 2011, pp. 126-30, doi:10.52763/PJSIR.BIOL.SCI.54.3.2011.126.130.