Class 10 nepali book unit 14 exercise July 8, 2019 16 32 64 128 Axik nepali class 11 Class 10 ko nepali book ko unit 10 Class 10 nepali book chapter 7 exercise Class 10 nepali unit 10 all exercise स्थानीयकरणभन्दा विश्वव्यापीकरण बेस shikshya phadsala