00243nam a22001097a 4500 658.4 POT/O Potty,L R Operations Reaserach Thiruvananthapuram Yamuna Publications p.24p BK 77676 77676 0 0 0 0 COM GBCTL GBCTL F38 2022-06-22 169.00 8 13 658.4034 POT/O CMP67773 2025-12-03 2025-11-04 BK