1. Skin Cleansing Bars with High Level of Liquid Emollient;Abbas,2004
2. An Indention Study of an Elastoviscoplastic Material;Adams,1996
3. Cone Penetration of Petrolatum;ASTM International,2007
4. Penetration in Bituminous Materials;ASTM International,2006
5. Needle Penetration of Petroleum Waxes;ASTM International,2005