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.
P. H. E. D. Bhutan. Pu BT,
“Introduction to 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, 2011, pp. 5 p. (A-C, 1-2); ill.; 1 fig.