00445nam a22001337a 4500008004100000020001800041082002800059100002100087245009900108260004500207300001800252650001700270700002400287140514b        xxu||||| |||| 00| 0 eng d  a9789710438051  aFil. 516.24 En72bc2012  aEnriquez, Jay P.  aPlane trigonometry with focus on more practical applications in trigonometry/cJay P. Enriquez  aManila:bYmas Publishing  House,cc2012.  a298p. :bill.  xTrigonometry  aSergio E. Ymas, Jr.