Proximate and Elemental Composition of Black Seed and Jujube as Formulation for the Treatment of Peptic Ulcer. J Environ Bioremed Toxicol [Internet]. 2023 Jul. 31 [cited 2026 Aug. 20];6(1):19-23. Available from: https://journal.hibiscuspublisher.com/index.php/JEBAT/article/view/810