00649nam a22002297a 4500 OSt 20260220072337.0 260220b |||||||| |||| 00| 0 eng d 81-7169-957-X Textbook FEDL eng FEDL eng eng 507 SEN/R Sen, B. R. 265580 Effective methods of teaching science/ By B.R. Sen New Delhi Commonwealth Publishers 2025 242p. INR 1395.00 SCIENCE- TEACHING ddc TB 507 SEN/R 0 1680039 1680039 0 0 ddc 0 0 GEN FEDL FEDL GEN 2026-02-20 0 507 SEN/R EL0094988 2026-02-20 07:24:17 2026-02-20 TB 0 0 ddc 0 0 GEN FEDL FEDL GEN 2026-02-20 0 507 SEN/R EL0094989 2026-02-20 07:24:17 2026-02-20 TB 0 0 ddc 0 0 GEN FEDL FEDL GEN 2026-02-20 0 507 SEN/R EL0094990 2026-02-20 07:24:17 2026-02-20 TB 0 0 ddc 0 0 GEN FEDL FEDL GEN 2026-02-20 0 507 SEN/R EL0094991 2026-02-20 07:24:17 2026-02-20 TB 0 0 ddc 0 0 GEN FEDL FEDL GEN 2026-02-20 0 507 SEN/R EL0094992 2026-02-20 07:24:17 2026-02-20 TB