1. Toxicity of ammonia to algae in sewage oxidation ponds
2. Association of Official Analytical Chemistry. 1984. In: editor. Official methods of analysis, 14th edn. Arlington-VA: AOAC International.
3. Chemical Composition of Spirulina platensis Cultivated in Uzbekistan
4. , . 1996. Planejamento e otimização de experimentos. 2nd edn. Campinas-SP, Brazil: Editora da UNICAMP.
5. 1997. Mass culture of Spirulina outdoors-the earthrise farms experience. In: editor. Spirulina platensis (Arthrospira): Physiology, cell-biology and biotechnology. London: Taylor and Francis. p 131–158.