Berger, Shulamith. “Moyshe Levin (Ber Sarin) of Yung-Vilne and His Solo Publishing Venture for Children”. Judaica Librarianship 20 (December 31, 2017): 100–133. Accessed February 22, 2025. https://ajlpublishing.org/index.php/jl/article/view/501.