1. A comparison of two closed systems for the culture of tilapia;Allison,1980
2. Fixed Biological Surfaces-Wastewater Treatment: The Rotating Biological Contactor;Antonie,1976
3. Evaluation of a rotating disk wastewater treatment plant;Antonie;Journal Water Pollution Control Federation,1974
4. Standard Methods for the Examination of Water and Wastewater;APHA,1976
5. Interaction of ionized and unionized ammonia on short-term survival and growth of prawn larvae Macrobrachium rosenbergii;Armstrong;The Biological Bulletin,1978