Al Rehaily, A. J., Al Howiriny, T. A., Ahmad, M. S., Al Yahya, M. A., El Feraly, F. S., Hufford, C. D., & McPhail, A. T. (2001). Further Alkaloids from Haplophyllum tuberculatum. Phytochemistry, 57, 597–602.

Al Rehaily, A. J., T. A. Al Howiriny, M. S. Ahmad, M. A. Al Yahya, F. S. El Feraly, C. D. Hufford, and A. T. McPhail. “Further Alkaloids from Haplophyllum tuberculatum.” Phytochemistry 57 (2001): 597–602.

Al Rehaily AJ, Al Howiriny TA, Ahmad MS, Al Yahya MA, El Feraly FS, Hufford CD, et al. Further Alkaloids from Haplophyllum tuberculatum. Phytochemistry. 2001;57:597–602.

Al Rehaily, A. J., et al. “Further Alkaloids from Haplophyllum tuberculatum.” Phytochemistry, vol. 57, 2001, pp. 597–602.

Al Rehaily AJ, Al Howiriny TA, Ahmad MS, Al Yahya MA, El Feraly FS, Hufford CD, McPhail AT. Further Alkaloids from Haplophyllum tuberculatum. Phytochemistry. 2001;57:597–602.