Wang Qiu Guo2007-11-132006-10-112007-11-131987http://hdl.handle.net/10625/27187Text1 digital file (12 p. : ill.)Application/pdfenBIOGASREFRIGERATIONPARTICIPATORY RESEARCHCHINAMETHODOLOGYEXPERIMENTSDevelopment of cooling unit in 1987 for a domestic biogas refrigerator (step report)IDRC-Related Report