Phạm, C. S., & Phạm Côn Sơn. (2002). Cẩm nang du lịch. Hà Nội: Văn hóa Dân tộc.
শিকাগো স্টাইলে সাইটেশনPhạm, Côn Sơn, এবং Phạm Côn Sơn. Cẩm Nang Du Lịch. Hà Nội: Văn hóa Dân tộc, 2002.
এমএলএ সাইটেশনPhạm, Côn Sơn, এবং Phạm Côn Sơn. Cẩm Nang Du Lịch. Hà Nội: Văn hóa Dân tộc, 2002.
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