Nguyen Thanh Giao , Truong Hoang Dan and Vuong Thi Giau Em (2021) “Environmental Problems at The Yellow Snail Processing Households in Phung Hiep District, Hau Giang Province, Vietnam”, NIPES - Journal of Science and Technology Research, 3(2). doi: 10.37933/nipes/3.2.2021.2.