By Hough M Miller

Published by Branes and Noble, 1963

By Frederick S. Hillier and Gerald J lieberman

Published by Tata McGraw Hill, 2007

Published by ORACLE, 2002

By Douglas Applequist

Published by John wiley and sons, 1982

By Andrew Streiwieser and other

Published by Macmillan publishing co., 1989

By Applequist/Depuy/Rine Hart

Published by John Wiley and Sons, 1982

By Paj K. Bansal

Published by Allied Publishers Ltd., 1985

By Clifford T. Margan and others

Published by National book foundation, 2004

By K.B.Harvey and G.B.porter

Published by Addison vesley publishing co., 0

By Frederick J Bueche

Published by Mc Graw-Hill book co., 1986