00470nam a2200169 4500 9789393969934 M 001.42 RAV/A Ravi Sankar S Nair Aarum vaaykaatha pusthakam engane ezhuthaam/ by Ravi Sankar S Nair 3rd ed. Kozhikode: Atma books, 2023. 267p. Research methods Research, evaluation, and scientific method Knowledge BK 181981 181981 0 0 0 0 SSUS SSUS STACKS 2026-06-03 550.00 0 M 001.42 RAV/A 109052 2026-06-03 2026-06-03 BK