Abdel Hamid, H. (1990). Diagnosis of darkening green pigment on ancient papyrus. test, 7(2), 25-35. doi: 10.21608/bcps.1990.69765
Husam Abdel Hamid. "Diagnosis of darkening green pigment on ancient papyrus". test, 7, 2, 1990, 25-35. doi: 10.21608/bcps.1990.69765
Abdel Hamid, H. (1990). 'Diagnosis of darkening green pigment on ancient papyrus', test, 7(2), pp. 25-35. doi: 10.21608/bcps.1990.69765
Abdel Hamid, H. Diagnosis of darkening green pigment on ancient papyrus. test, 1990; 7(2): 25-35. doi: 10.21608/bcps.1990.69765