Moore,, Michael G. Distance education : a systems view of online learning / Michael G. Moore, Greg Kearsley

Distance education : a systems view of online learning / Michael G. Moore, Greg Kearsley . - 3rd ed . - Belmont : Wadsworth, cop. 2012 . - XX, 361 p. 23 cm
978-1-111-52099-1 Brochado

37.018.43
681.324
371.68