Biblio

C. Polprasert, Organic waste recycling. Chichester, UK: Wiley, 1989, p. xiv, 357 p.: fig., tab.

B. Sikka and Polprasert, C., Aquatic weeds and their uses : an overview of perspectives for developing countries, vol. no. 21. Bangkok, Thailand: Environmental Sanitation Information Center, ENSIC, 1986, p. 79 p.: fig., tab.