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Preparation and Study of Some Properties, True Density, Apparent Porosity and Water Absorption of Polymeric Blend Films [PVA:PVP] Reinforced by CaCl2.2H2O Salt. Euro.J.Ph.Ch.Ma. 2022;7:51-56. Accessed January 20, 2026. https://geniusjournals.org/index.php/ejpcm/article/view/1657