00299nam a22001097a 4500 NUST 20251009154104.0 621.3615,CHO Radio Frequency Management Conference / Muhammad Abbas Choudhary Frequency Allocation Board Islamabad 1999 ddc BK 615136 615136 0 0 ddc 0 0 MCS MCS GEN 2025-10-09 0 621.3615,CHO MCS27483 2025-10-09 2025-10-09 BK Almirah No.76, Shelf No.2