Geography · Geography of Economic Activities and Regional DevelopmentUGC NET December 2015 Geography Paper III
हिन्दी में पढ़ें →Which one of the following authors suggested a fivefold division of adopters on the basis of the time lag between receiving and acting upon new information?
AE.M. Rogers
BL.W. Bowden
CZ. Griliches
DT. Hagerstrand
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