Ariuntuya TserendorGerelt-Od DashdondogUsukhbayar Puntsagsuren2025-10-052022https://gmitlibrary.net/handle/123456789/76Mongolian people have a proverb “Water is a wish granting jewel” or “Ус бол чандмань эрдэнэ”, which specifies that Mongolians have been living near to the water sources by cherishing, protecting and worshiping water for the generations.enDETERMINATION OF DEOXYGENATION RATE OF SELBE RIVER AND ITS PURIFICATION STUDYThesis