ISBN 3319357522 books & textbook
E-Learning Systems, Environments and Approaches: Theory and Implementation
Isaías, Pedro Spector, J. Michael Ifenthaler, Dirk Sampson, Demetrios G.
Springer /2016-10-06 Paperback / 352 Pages
isbn-10: 3319357522 / isbn-13: 9783319357522
