public KhachHangService(IKhachHangRepository khachHangRepository,
                         ILopHocRepository lopHocRepository,
                         INguoiDungRepository nguoiDungRepository,
                         IHocPhiRepository hocPhiRepository,
                         IAppSettings appSettings,
                         IMapper mapper)
     : base(khachHangRepository, mapper)
 {
     _lopHocRepository    = lopHocRepository;
     _nguoiDungRepository = nguoiDungRepository;
     _khachHangRepository = khachHangRepository;
     _hocPhiRepository    = hocPhiRepository;
     _appSettings         = appSettings;
 }
 public HocPhiService(IHocPhiRepository hocPhiRepository, IMapper mapper)
     : base(hocPhiRepository, mapper)
 {
     _hocPhiRepository = hocPhiRepository;
 }