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Primandari S, Mulianti, Kaharudin A, Fernanda Y, Generousdi, Narayanan B. Removal of Ferrous using Citric Acid in Patchouli Oil Purification by Complexometry . Kompl. Ispolz. Min. Syra = Compl. Use of Min. Resour. [Internet]. 2023 Jan. 23 [cited 2026 Mar. 7];326(3):81-7. Available from: http://kims-imio.com/index.php/main/article/view/289