Biblio

P. H. E. D. Bhutan. Pu BT, «Do It Yourself (DIY) : final one pagers for three base toilets : ventilated improved pit toilet; pour-flush toilet; eco-san toilet». Bhutan, Ministry of Health, Public Health Department, PHED, S.l., p. 6 p.; ill., 2013.

P. H. E. D. Bhutan. Pu BT, «Direct pit toilets in Handbook on toilets in Bhutan», in Handbook on toilet options for rural households in Bhutan : rural sanitation and hygiene programme, Thimphu, Bhutan: Bhutan, Ministry of Health, Public Health Department, PHED, 2012, pp. 7 p. (3-9); 2 tab.; 15 fig.

P. H. E. D. Bhutan. Pu BT, «Handbook on toilet options for rural households in Bhutan : rural sanitation and hygiene programme». Bhutan, Department of Works and Housing, Public Health Engineering Division, Thimphu, Bhutan, p. 56 p.; ill.; tab.; drawings, 2011.