Biblio

Thailand, Ministry of Interior, Equipment Control Division -TH, «Hand pump improvement for Thailand rural area. Vol. II. Hand pump details drawing Department of Mineral Resources and Department of Public Works Types». Thailand, Ministry of Interior, Equipment Control Division, Bangkok, Thailand, p. 67 p. : techn.drwng.

Thailand, Ministry of Interior, Equipment Control Division -TH, «Hand pump improvement for Thailand rural area. Vol. III. Hand pump details drawing Accelerated Rural Development Office and Equipment Control Division Types». Thailand, Ministry of Interior, Equipment Control Division, Bangkok, Thailand, p. 81 p. : techn.drwng.