Heller, R., & Nguyễn Đô. (2006). Quản lý nhóm. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh.
শিকাগো স্টাইলে সাইটেশনHeller, Robert, এবং Nguyễn Đô. Quản Lý Nhóm. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh, 2006.
এমএলএ সাইটেশনHeller, Robert, এবং Nguyễn Đô. Quản Lý Nhóm. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh, 2006.
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