1. Wissa, Anwar E.Z., Gypsum Stacking Technology, Annual Technical Meeting, Central Florida and Peninsular Sections, American Society of Chemical Engineers, Clearwater, Florida, May 1977.
2. United States Environmental Protection Agency, Region 4, Environmental Impact Statement, Central Florida Phosphate Industry, EPA 904/9-78-026a, November 1978.
3. Wissa, Anwar E. Z., and Fuleihan, Nadim F., Impacts of Phosphogypsum Stack Management on Process Water Balance, presented at Session 76, Seminar on Phosphogypsum Pond Management, AIChE Spring National; Meeting, New Orleans, Louisiana, April 1986.
4. Wissa, Anwar E. Z., and Fuleihan, Nadim F., Design and Reclamation of Phosphogypsum Disposal Sites, Advances in Phosphate Fertilizer Technology, AIChE Symposium Series 292, Volume 89, 1993.
5. Garlanger, John E., Fuleihan, Nadim F., and Riad, Ashraf H., Leakage Rates through Geomembrane Liners Beneath Phosphogypsum Disposal Facilities, Proceedings of the Fifth International Conference on Geotextiles, Geomembranes and Related Products, Singapore, 1994.