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Luu, Q. ., Nguyen, M. ., Nguyen-Viet, H. ., Pham, G. ., Dinh-Xuan, T. ., MacDonald, L. ., & Pham-Duc, P. . (1969). Community Participatory Interventions to Improve Farmer Knowledge and Practices of Household Biogas Unit Operation in Ha Nam Province, Vietnam. Journal of Public Health Management and Practice : JPHMP, 24 Suppl 2 Supplement, Public Health in Vietnam, S28-S35. https://doi.org/10.1097/PHH.0000000000000727 (Original work published 1969)