Syafa’atun, Tria, and Nur Marisa. “Antioxidant and Organoleptic Test of Soursop (Annona Muricata Linn.) Leaf Tea in Herbal Tea Production Process”. Journal of Natural Sciences and Mathematics Research, vol. 6, no. 2, Dec. 2020, pp. 49-56, https://journal.walisongo.ac.id/index.php/JNSMR/article/view/11220.