Teachers on the EdgeJohn Boe, Eric Schroeder, David Masiel, Lisa Sperber · First published 2017Open the Tome
The Sarbanes-Oxley ActEdward F. Greene, Leslie N. Silverman, David M. Becker, Edward J. Rosen, Janet L. Fisher, Daniel A. Braverman, Sebastian R. Sperber · First published 2003Open the Tome
סוויני טוד [תכניה]Stephen Sondheim, Stanley Sperber, David Alden, Israel) Operah ha-Yiśreʼelit ha-ḥadashah (Tel Aviv · First published 1991Open the Tome
Cutting chemical wastesDavid Sarokin, David J. Sarokin, Warren R. Muir, Catherine G. Miller, Sebastian Sperber · First published 1985Open the Tome
