Өгөгдлийн бүрдэл
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Preliminary result of pit latrine of ger district zone of the Ulaanbaatar city
The world population rising very fast and it has resulted in increasing the area of polluted soil, water and air. In order to cater to the demands of the people, the rapid...
Та API -ийг ашиглан бүртгүүлж болно (API бичиг баримтууд -ээс харна уу).