Plane trigonometry: for higher secondary classess/
Mahmud,Sultan.
Plane trigonometry: for higher secondary classess/ Sultan Mahmud. - 2nd rev.ed. - Dhaka: East Bengal Pub., 1963 - xii,318p.: illus.; 18cm.
1 .Trigonometry.
2 . Mathematics.
516.242/ MAP
Plane trigonometry: for higher secondary classess/ Sultan Mahmud. - 2nd rev.ed. - Dhaka: East Bengal Pub., 1963 - xii,318p.: illus.; 18cm.
1 .Trigonometry.
2 . Mathematics.
516.242/ MAP