Richard B. Hoffman, John P. Seagle. A problem oriented computer-based instructional procedure. In Solomon L. Pollack, Thomas R. Dines, Ward C. Sangren, Norman R. Nielsen, William G. Gerkin, Alfred E. Corduan, Len Nowak, James L. Mueller, Joseph Horner III, Pasteur S. T. Yuen, Jeffery Stein, Margaret M. Mueller, editors, Proceedings of the 24th national conference, ACM 1969, USA, 1969. pages 97-110, ACM, 1969. [doi]
Abstract is missing.