Hi, Khong phai! DHS la` du ho.c sinh. Boi the y anh a^'y muon ho?i la` pha^n bo^? ho.c sinh theo ca'c nga`nh ra sao. Thanh. ------ Well, I don't know what does DHS mean. But as I try to understand your question, there is a big library in HCMC that serves for students of all university located in HCMC, in every major. We call it "Thu* Vie^.n Quo^'c Gia TPHCM". Is it what you ask about? Thanks PBi`nh