. ""cc,,·;'1.2B!C BIEM BIA HINHNhin chung toan hru V\IC
co dia hinh biSn d6i kha phirc t:;J.P, chia c~t manh nh~t lakhu vue dftu nguon thuoc cac chi hru nhir
song Boi,
song B~p, song Lang,
song Tich,
song Thanh Ha. Cao dO bien d6i th~p dftn ill Tay )3~c xU6ng Bong N[r]