Identify the person who defined development communication for the first time in
1970s.
(a) Christina Ogan
(b) Rosemary Righter
(c) Nora C.Quebral
(d) William Hachten
1970s.
(a) Christina Ogan
(b) Rosemary Righter
(c) Nora C.Quebral
(d) William Hachten