Punjab Textbook Board
A textbook of algebra and trigonometry : class XI Punjab Textbook Board - Lahore: Punjab Textbook Board, 1999. - 429p.
pbk
eng
Mathematics-Study and teaching
372.7 / PUT
A textbook of algebra and trigonometry : class XI Punjab Textbook Board - Lahore: Punjab Textbook Board, 1999. - 429p.
pbk
eng
Mathematics-Study and teaching
372.7 / PUT