Home › Authors › Saudi Arabia. Wizārat al-Tahk tī t. 👤 Saudi Arabia. Wizārat al-Tahk tī t. 1 book Books by Saudi Arabia. Wizārat al-Tahk tī t. Fourth Development Plan, 1405- Fourth Development Plan, 1405-1410 A.H. (1985-1990 A.D.) 1985