^Da Costa، Jacob (2 أبريل 1883). The Higher Professional Life: Valedictory Address to the Graduating Class of Jefferson Medical College, Philadelphia. Philadelphia, PA: J.B. Lippencott & Co. ص. 11; 18.
^Korbin، Nancy H.؛ Korbin، Jerry L. (1 أكتوبر 1999). "J. M. da Costa, M.D.—A tinok she-nishbah?: An American Civil War Converso Physician". Shofar. ج. 18 ع. 1: 22 in pages 16–39. JSTOR:42942980.
