00415pab a2200145 454500008004000000100001500040245008400055260000900139300001400148362001100162650002200173650003100195650002300226773002000249180718b1999   xxu||||| |||| 00| 0 eng d  aGuha, A.S.  aCollaborative learning and the IGNOU model of the distance learning facilitator  c1999  ap.9-10,14  a12 Apr  aEducation - India  aDistance education - India  aDistance education  aUniversity News