יסודות איתנים
Subtitle: 80 : 696 - 776
By: ketivah ṿe-ʻarikhah Avigdor ha-leṿi Rubinshṭein
Publisher: Yeshivat ḥidushe ha-Rim
Published: 2015
Place of publication: Tel aviv
Language: heb
Number of pages: 165
Subjects: Yeshivas; Gur Hasidim; Yeshivat "Ḥidushe ha-Rim" (Tel Aviv, Israel)
Other titles: Yesodot etanim