Lofty, Yossra Ahmed Mamdouh, 		El-Kosasy, Amira M., AND 		El Aziz, Lobna abd.
"Determination of Sodium Fluoride in Dental Mouth Wash and Oral Multivitamin Formula Using RP-HPLC Precolumn Derivatization Reaction" <em>International Journal of Research in Science</em> [Online], Volume 2 Number 1 (15 March 2016)