http://doc.edu.vn/tai-lieu/tieu-luan-chu-nghia-mac-le-nin-ket-hop-voi-phong-trao-cong-nhan-va-phong-trao-yeu-nuoc-da-dan-toi-viec-thanh-lap-dang-39756/

http://k52a2g2.googlecode.com/svn/trunk/LSDang/Tuan2/HaLT/Cau%20hoi%20chu%20de%207_LSD.doc

http://diendankienthuc.net/diendan/showthread.php?t=31269

http://hueuni.edu.vn/csdlkhoahoc/data/baibao/%C4%90%E1%BA%A2NG_C%E1%BB%98NG_S%E1%BA%A2N_VI%E1%BB%86T_NAM_RA_%C4%90%E1%BB%9CI%281%29.doc