1. IPC Global Solder Statistical Program Report for 2nd Quarter 2007, August 2007
2. “Electronics Manufacturing with Lead-Free, Halogen-Free, and Conductive-Adhesive Materials” by John H. Lau, C. P. Wong, Ning-Cheng Lee, S. W. Ricky Lee. Hardcover: 700 pages, 1st edition (August 27, 2002), by McGraw-Hill.
3. C. Hunt and D. Lea, “Solderability of Lead-Free Alloys”, in Proceedings of Apex 2000, Long Beach, CA, March 2000.
4. Nihon Superior data sheet, www.nihonsuperior.co.jp/english/products/leadfree/#01
5. Indium Corporation data sheet, www.indium.com/_dynamo/download.php?docid=500