Muslihatin, Wirdhatul, and Ruspeni Daesusi. “Effects of Photoperiodism to The Growth Rate of Hibiscus Sabdariffa L”. IPTEK The Journal for Technology and Science, vol. 25, no. 1, July 2025, pp. 18-22, https://journal.its.ac.id/index.php/jts/article/view/4785.