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Thanh, N. C., Lohani, B. N. & Tharun, G. (Eds) ( 1978), Waste disposal and resource recovery, Proceedings of the 1st Regional Seminar on Solid Waste Management , AIT-CDG, Bangkok, 25-30 September.

Thanh, N. C., Lohani, B. N. et al. (Eds) (1979), Waste disposal and resource recovery, Proceedings of the 2nd Regional Seminar on Solid Waste Management, AIT-CDG, Bangkok, 3-10 December.