1. Reforming of wet process phosphogypsum;Onoda Cement Company Ltd, Japan;Chem Abstr,1982
2. Use of phosphogypsum in production of gypsum flake board;Erlenstaedt,1984
3. Production of hemihydrate from by product gypsum;Forster;Chem Eng Technol,1972
4. Beneficiation of phosphogypsum for use in building material;Singh,1982
5. Effect of phosphogypsum impurities on the morphology and physical characteristics of set plaster;Singh,1983