Usha

Link to book on amazon

Instructional-Design Theories and Models – The Learner-Centered Paradigm of Education

Instructional-Design Theories and Models – Building a Common Knowledge Base

Instructional-Design Theories and Models – A New Paradigm of Instructional Theory, edited by Charles M. Reigeluth

Instructional-Design Theories and Models – An Overview of their Current Status, edited by Charles M. Reigeluth.