Biblio

D. O. H. Philippine PH, « EASAN 2010 : East Asia ministerial conference on sanitation and hygiene : presentations ». Philippines, Department of Health, DOH, Manila, Philippines, p. Various papers, 2010.

D. O. H. Philippine PH, « Implementing rules and regulations of chapter XVII - sewage collection and disposal, excreta disposal and drainage of the code on sanitation of the Philippines (P.D. 856) ». Philippines, Department of Health, Environmental Health Service, Manila, Philippines, p. 22 p. : 2 boxes, 1 tab., 1995.