S. Al-Ghabsha, T., ثابت, A. Al-Delymi, and أ. “Spectrophotometric Determination of Microgram Amounts of Aliphatic Amines With Quinalizarin”. Journal of Education and Science (JES), vol. 22, no. 1, Mar. 2009, pp. 32-42, doi:10.33899/edusj.2009.57440.