1. Asubiojo, O., Guinn, V., and Okumaga, A., 1982. Multielement analysis of Nigerian chewing sticks by instrumental neutron activation analysis, J. Radioanal. Chem. 74:149.
2. Bowen, H. J. N., 1956. Neutron activation, J. Nucl. Energy 3:18.
3. Braetter, P., 1983. On the application of neutron activation analysis in the life sciences, Radiochim. Acta 34:85.
4. DeLancey, K., 1982. Radiochemical neutron activation analysis studies of biological samples in connection with marine production of petroleum and instrumental neutron activation analysis of sedimentary rocks related to uranium exploration, Diss. Abstracts Int. B. 43:417.
5. DeSoete, D., Gijbels, R., and Hoste, J., 1972. Neutron activation analysis, Chemical Anal ysis Monograms 34:140.