khachhang.json

[{"ma_kh": "TTT", "ten": "THUONG THAI THINH", "ck_codes": ["Eurogoldck51%", "Mallocack37%"]}, {"ma_kh": "CCO", "ten": "Côngty chị Oanh", "ck_codes": ["Mallocack37%", "Eurogoldck54%"]}]