Smart Soapmaking   by Anne L. Watson
Basic soapmaking  by Elizabeth Letcavage
Milk soapmaking  By anne L. watson
The Everything soapmaking book   By Alicid  Grosso
Soap making the natural wAy By rebecca Lttner
The Natural soap book by susan MILLER cAVITCH
COMPLETE IDIOTS GUIDE TO MAKING NATURAL SOAP BY SALLY W. TREW AND ZONELLA B.GOULD
SOAP MAKING FOR FUN AND PROFIT BY MARIA NERIUS