“Sefer Serotsk” (The Book of Serock), Tel Aviv, 1971; https://www.jewishgen.org/Yizkor/serock/serock.html
Pamięć Treblinki – Fundacja Ochrony Pamięci Obozu Zagłady w Treblince
“Sefer Serotsk” (The Book of Serock), Tel Aviv, 1971; https://www.jewishgen.org/Yizkor/serock/serock.html