S. Ballal
发表
S. Ballal,
B. Ali,
A. Albar,
1998,
The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease.
S. Ballal,
B. Ali,
A. Albar,
2001,
International journal of occupational and environmental health.
D. Jerwood,
S. Ballal,
H. Ahmed,
2001,
The Annals of occupational hygiene.
Thorbjörn Laike,
Byron Mikellides,
Rikard Küller,
2006,
Ergonomics.
Thorbjörn Laike,
Rikard Küller,
R. Küller,
1999
.
S. Ballal,
2016,
Saudi journal of medicine & medical sciences.
S. Ballal,
A. Al-Abdulkareem,
1998,
Journal of Community Health.
S. Ballal,
1997,
Occupational medicine.
Home accidents in Al-Khobar City, eastern province, Saudi Arabia: A case-control socioeconomic study
S. Ballal,
Lt. Col Hadi S. Al-Nahari,
1992,
Journal of community health.
S. Ballal,
1995,
Journal of family & community medicine.
J H Dennis,
D. Jerwood,
S. Ballal,
2001,
Occupational medicine.
S. Ballal,
A. Albar,
H. Ahmed,
1998,
Occupational medicine.
S. Ballal,
A. Albar,
H. Ahmed,
2004,
International journal of occupational and environmental health.
S. Ballal,
H. Al-Freihi,
A. Jaccarini,
1987
.
S. Ballal,
Y. Khawaji,
1992,
Tubercle and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease.