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Suv va tuproq gigiyenasi
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This book covers the composition of soil, its hygienic importance, water reservoirs, methods of preventing soil pollution, and more
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#mineral moddalar#organik modda#suv va havo
Premium Content
Suv va tuproq gigiyenasi
4,000so'm
Betlar soni
11 taFayl hajmi
781.38 KBFayl turi
.pptx
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