00505nam a2200169Ia 4500 CTU_48061 210402s9999 xx 000 0 und d 531.1076 H455/2001 Lê Doãn Hồng Bài tập cơ học Lê Doãn Hồng, Đỗ Sanh Hà Nội Giáo Dục 2001 dynamics - problems, exercises, etc,mechanics Trung tâm Học liệu Trường Đại học Cần Thơ