01582nas 2200457-a 450 99620746050331620240129213017.02331-3978(DE-599)ZDB2453919-3(OCoLC)298760477(CKB)958480290378(CONSER)--2010234725(EXLCZ)9995848029037820780817b19781988 --- aengur|||||||||||txtrdacontentcrdamediacrrdacarrierJournal of instructional development JID /Association for Educational Communications & TechnologyPark Forest South, IL Association for Educational Communications & Technology1978-19880162-2641 JIDInstructional systemsPeriodicalsSystèmes d'enseignementPériodiquesInstructional systemsfast(OCoLC)fst00974356Czasopismo techniczne.dbnPeriodicals.fastPeriodicals.lcgftperiodicals.aatPériodiques.rvmgfInstructional systemsSystèmes d'enseignementInstructional systems.371.3/07/8Association for Educational Communications and Technology.Association for Educational Communications and Technology.Division for Instructional Development.JOURNAL996207460503316Journal of instructional development2028700UNISA