You can refer book for Melting assistant /Helper.
Book Name-Automobile Engineering
Author Name-by Dr.Kirpal Singh
Price-Rs.400 (approximately)
Link : http://www.amazon.in/Automobile-Engineering-2-Dr-Kirpal-Singh/dp/8180141772?tag=googinhydr18418-21&tag=googinkenshoo-21&ascsubtag=fd802556-af93-46d2-85f1-95599dffa27b