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Maulana I, Firmansyah A, Amir R, Tyas Angganawati R. Formulation and Evaluation of Effervescent Tablets from Guava Leaf Extract with Variations of Polyvinylpyrrolidone Concentration. fitofarmaka JIF [Internet]. 2025 Jun. 30 [cited 2025 Jul. 4];15(1):11-8. Available from: https://fitofarmaka-fmipa.unpak.ac.id/index.php/fitofarmaka/article/view/36