Gw mau tau Bibliografi dari Donald J. Cram. Jelasin dalam bahasa melayu

"Multiheteromacrocycles that Complex Metal Ions. Second Progress Report, 1 May 1975 -- 30 April 1976", UCLA, United States Department of Energy (through predecessor agency the U.S. Energy Research and Development Administration), (January 15, 1976).

"Multiheteromacrocycles that Complex Metal Ions. Fourth Progress Report, 1 May 1977 -- 30 April 1978", UCLA, United States Department of Energy (through predecessor agency the U.S. Energy Research and Development Administration), (January 15, 1978).

"Multiheteromacrocycles that Complex Metal Ions. Sixth Progress Report, 1 May 1979-30 April 1980", UCLA, United States Department of Energy, (January 15, 1980).

"Multiheteromacrocycles that Complex Metal Ions. Ninth Progress Report (includes results of last three years), 1 May 1980 -- 30 April 1983", UCLA, United States Department of Energy, (September 15, 1982).