Susanto, Slamet, Gusti AjiTitistyas, and Arifah Rahayu. 2015. “The Effect of Apex Pruning on Vegetative and Generative Growth of Roselle (Hibiscus Sabdariffa L.)”. Jurnal Hortikultura Indonesia 4 (3), 150-56. https://doi.org/10.29244/jhi.4.3.150-156.