S HA, Cortes-Martinez R, Alfaro-Cuevas-Villanueva R. Fluoride Removal from Aqueous Solutions by Mechanically Modified Guava Seeds. IJSBAR. 2013;11(1):159-172. Accessed October 30, 2025. https://gssrr.org/JournalOfBasicAndApplied/article/view/1326