Mahsulot tavsifi
Study of the properties and usage of V A group (P-phosphorus, N-nitrogen) in the periodic system
#davriy sistema#kimyoviy xossalari#v a guruh
Muallif

FARHODJON ALLAYAROVTasdiqlangan muallif
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Study of the properties and usage of V A group (P-phosphorus, N-nitrogen) in the periodic system
