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Book 4 of ST240, Our Chemical Environment, The Open University, 1995. ISBN 0 7492 5144 1.
Book 6 of S207, The Physical World, The Open University, 2000. ISBN 0 7492 8076 X.
Units 1 & 2 of ST291, Images and Information, The Open University, 1992. ISBN 0 7492 5051 8.
Rigos A.A. and Salemme K., Photochemistry and Pinhole Photography, Journal of Chemical Education, vol. 76 (6), pp. 736 and 736B, 1999.