Chemistry Department;
Faculty of Science (Boys);
Al-Azhar University;
Cairo;
Egypt;
Chemistry Department;
University College in Al-Jamoum;
Umm Al-Qura University;
Makkah;
Saudi Arabia;
Textile Research Division;
National Research Centre;
Giza;
Egypt;
Balguenvzh University College;
Department of Female Student;
Umm Al-Qura University;
Makkah;
Saudi Arabia;
Chemistry Department;
College of Sciences & Art;
Al Jouf University;
El-Quraiat;
Saudi Arabia;