I. N. H. U. D. C. O. - New Delhi, Human Settlements Management Institute -New Delhi, IN, HSMI, et Patna, I. N. Sulabh Int,
« Evaluation study of low cost sanitation programme : Madhya Pradesh ». Housing and Urban Development Corporation, New Delhi, India, p. 11 p., 1991.
J. Pickford,
« Public and communal latrines »,
Waterlines, an international journal of water, sanitation and waste, vol. no. 28, p. p. 15-18: ill., 1991.