Muʻtamar li-Wuzarāʻ al-Tarbiyah wa-al-Taʼlim al-ʼArab (4th 1972 Sanʼā')

• al-Muʻtamar al-rābi ʼli-wuzarāʻ al-tarbiyah wa-al-taʼlīm al-ʼarab, Sanʼā', 23-28/12/1972