Saha, S. K. (2012). Research Planning and Proposal Writing Skills. Osder Publications.
Chicago Style (17th ed.) ZitazioaSaha, Subrota Kumar. Research Planning and Proposal Writing Skills. Dhaka: Osder Publications, 2012.
MLA (9th ed.) ZitazioaSaha, Subrota Kumar. Research Planning and Proposal Writing Skills. Osder Publications, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.