His The blind witness, 1983: t.p. (Arup Kumar Dutta) t.p. verso (teacher of Eng.; journalist)
New Delhi manual auth. cd. (hdg.: Datta, Arup Kumar; usage: Arup Kumar Datta)
His Smack, c1990: t.p. (Arup Kumar Datta)
Ltr. fr. auth., 4/4/88 (Arūpa Kumāra Datta, b. 7/2/1946)
Indian Railways, the final frontier, 2002: (Arup Kumar Dutta); p. 302 (Dutta, A. K.)