1. Appleby AJ, Foulkes. FR Fuel Cells Hand Book. New York: Van Nostrand Reinhold, 1989
2. International data book on fuel cell activities. Hirschenhofer JH. for US Department of Energy Gilbert/Commonwealth, Reading, Pennsylvania, USA, 1994
3. Fuel Cell R,D&D in Japan. Fuel cell development information centre, Chiyoda-ku, Tokyo, Japan, 1994
4. Blowmen LJMJ, Mugerwa MN. Fuel Cell Systems. New York: Plenum Press, 1993
5. Al-Boeiz A, Ghouse M, Al-Garni M. Present status of phosphoric acid fuel cell acid (PAFC) R&D activities at KACST, Proceedings of the 16th World Energy Council Conference held at Tokyo, Japan, Oct 8–13, 1995:257–274