Shiṭot shel taḳtsiv diferentsyali be-ḳibutsim u-meʾafyenehen

Universiṭat Ḥefah. Makhon le-ḥeḳer ule-limud ha-ḳibuts ṿeha- raʻyon ha-shitufi, Menahem Rosner, Dov Peleg, Ḥanah Goldemberg