Media I. MuhammedAmin and Sawsan M. S. Ali Kanimarani 2020. The influence of plant growth regulators on phytochemical components in the leaves and calyxes of Roselle (Hibiscus sabdariffa L.). Zanco Journal of Pure and Applied Sciences. 32, 3 (Jun. 2020), 193–199. DOI:https://doi.org/10.21271/ZJPAS.32.3.20.