https://www.lib.iq/biblio/143088https://www.lib.iq/biblio/144964https://www.lib.iq/biblio/145926https://www.lib.iq/biblio/152225https://www.lib.iq/biblio/178416https://www.lib.iq/biblio/203194https://www.lib.iq/biblio/203195https://www.lib.iq/biblio/204055