DATTA, S K, D CHAKRABARTY, DEEPTI DEEPTI, A K A MANDAL, P MISRA, and M SAXENA. 2014. “In-Vitro Petal Culture and Callus Formation in Rosa Species”. The Indian Journal of Agricultural Sciences 72 (5). https://epubs.icar.org.in/index.php/IJAgS/article/view/40815.