1. Spear Mike. Tap into Tollershttps://www.chemicalprocessing.com/articles/2005/tap-into-tollers/?stage=Live. Accessed on July 13 2019.
2. M.Gohndrone John J.Surma Rick Essentials for Success with Contract and Toll Manufacturing inThe 2007 Spring National Meeting 2007.
3. H.Worstell Jonathan To Toll or Not to Toll: That Is the Question Presented in the 2007 AIChE Spring Meeting and 3rd Global Congress on Process Safety Houston TX April 22–27 2007.
4. O.Jake Contract Manufacturing: Increasing Project Speed & Managing Market Uncertainty Presented in the 2016 AIChE Spring Meeting and 12th Global Congress on Process Safety Houston TX April 10–14 2016.
5. J.Doll Mike H.Worstell Jonathan Using Tollers for Chemical Product Manufacture: the Details of Success Presented in the 2007 AIChE Spring Meeting and 3rd Global Congress on Process Safety Houston TX April 22‐27 2007.