Akbarian,R . (2001). The Basic Principle in Ibn-Sina's Ontology. The International Journal of Humanities, 8(1), 1-14.
Akbarian,R . "The Basic Principle in Ibn-Sina's Ontology", The International Journal of Humanities, 8, 1, 2001, 1-14.
Akbarian R. (2001). 'The Basic Principle in Ibn-Sina's Ontology', The International Journal of Humanities, 8(1), pp. 1-14.
R Akbarian, "The Basic Principle in Ibn-Sina's Ontology," The International Journal of Humanities, 8 1 (2001): 1-14,
Akbarian R. The Basic Principle in Ibn-Sina's Ontology. The International Journal of Humanities. 2001;8(1):1-14.