00534nam a22001457u 4500 20261003205724.0 260926nuuuuuuuuxx ||||| |||||||| ||khm d (PTEC-PMB)287f7195d30a1dd9 khm 540 ឡុង សូលីដា គីមីអាហារ មូលដ្ឋានគ្រឹះនិងការអនុវត្ត 500 វិទ្យាសាស្ត្រធម្មជាតិ និងគណិតវិទ្យា BK ddc 1669 1669 0 0 ddc 0 0 SCI PTEC PTEC 2026-09-26 0 540 ឡុង 31094 2026-09-26 12:15:52 2026-09-26 BK 0 0 ddc 0 0 SCI PTEC PTEC 2026-09-26 0 540 ឡុង 31096 2026-09-26 12:15:52 2026-09-26 BK 0 0 ddc 0 0 SCI PTEC PTEC 2026-09-26 0 540 ឡុង 31097 2026-09-26 12:15:52 2026-09-26 BK 0 0 ddc 0 0 SCI PTEC PTEC 2026-09-26 0 540 ឡុង 31098 2026-09-26 12:15:52 2026-09-26 BK 0 0 ddc 0 0 SCI PTEC PTEC 2026-09-26 0 540 ឡុង 31102 2026-09-26 12:15:52 2026-09-26 BK 0 0 ddc 0 0 SCI PTEC PTEC 2026-09-26 0 540 ឡុង 31103 2026-09-26 12:15:52 2026-09-26 BK 0 0 ddc 0 0 SCI PTEC PTEC 2026-09-26 0 540 ឡុង 32652 2026-09-26 12:15:52 2026-09-26 BK