Text book of plane trignometry
Chugh; Om.P.,Gupta;G.C, and Gupta;R.K.
Text book of plane trignometry English - 4th.rev.ed. - Delhi Kautilya prakashan 1981 - 316 pg.
Mathematics
516.24 C7P
Text book of plane trignometry English - 4th.rev.ed. - Delhi Kautilya prakashan 1981 - 316 pg.
Mathematics
516.24 C7P