United Nations Centre for Regional Developmentc1995UNCRD textbook and training material series
no. 2 . New training design for local social development : the single system design in competency-based training ; v. 2
John F. Jones, Toshihiro Yogo ; contributors: Martha Tshitshi Mbatha ... [et. al]
United Nations Centre for Regional Developmentc1994UNCRD textbook and training material series
no. 1. New training design for local social development : the single system design in competency-based training ; v. 1