Hanjani, S. A. (1985). Validity of international contracts. Legal Research Quarterly, 1(1), 122–148.

Hanjani, S. A. "Validity of international contracts", Legal Research Quarterly, 1, 1, 1985, 122–148.

Hanjani, S. A. (1985). 'Validity of international contracts', Legal Research Quarterly, 1(1), pp. 122–148.

Hanjani, S. A., "Validity of international contracts." Legal Research Quarterly, 1 1 (1985): 122–148,

Hanjani S. A. Validity of international contracts. Leg Res Q. 1985;1(1):122–148 (In Persian).