"dass, h k. "
advanced engineering mathematics: / h.k. dass - 19 ed. - ram nagar : s.chand 2009. - "xvi, 1358p.; 25 cm."
81-219-0345-9
--
515. 14 das
advanced engineering mathematics: / h.k. dass - 19 ed. - ram nagar : s.chand 2009. - "xvi, 1358p.; 25 cm."
81-219-0345-9
--
515. 14 das