Avşar, C., and S. . Ertunç. “FLUORIDE REMOVAL FROM PHOSPHOGYPSUM: A STUDY ON A PRE-INDUSTRIAL SCALE AND ITS MATHEMATICAL ANALYSIS: Original Scientific Paper”. Chemical Industry & Chemical Engineering Quarterly, vol. 30, no. 1, Oct. 2023, pp. 35-46, doi:10.2298/CICEQ230203009A.