*Factors affecting primary health care services (PHCS) utilization by hajjis 1430H.
*The role of Hamla management in the prevention and control of food poisoning episodes in Mina, during Hajj 1430 H (2009G).
*Satisfaction of Arab patients about services provided by primary health care centres in Makkah & Mina during hajj season 1430H.
*Aziz International Airport regarding preventive measures of Communicable Diseases for Pilgrims, 1430H.(2009).