“ATTACK OF TUNISIAN PHOSPHATE ORE BY A MIXTURE OF SULFURIC AND PHOSPHORIC ACID: Kinetics Study by Means of Differential Reaction Calorimetry”. Journal of Mining and Metallurgy, Section B: Metallurgy, vol. 55, no. 1, Mar. 2019, p. 9, https://test.aseestant.ceon.rs/index.php/jmm/article/view/18493.