00686nam a2200205Ia 4500 CTU_226311 210402s9999 xx 000 0 und d 303.484 R724 Rogers, Everett M. Diffusion of innovations Everett M. Rogers New York Free Press 1983 Chapter 1 ELEMENT OF DIFFUSION ; Chapter 2 A HISTORY OF DIFFUSION RESEARCH... Diffusion of innovations,Khuếch tán của đổi mới Study and teaching,History,Dạy và học,Lịch sử nthai Trung tâm Học liệu Trường Đại học Cần Thơ