Kitzur Resources:
- Kitzur 62:13 – Halachic History of Copyrights [article]
- Kitzur 62:13 – Competition for a House – Rav Abba Zvi Naiman {audio}
- Kitzur 62:13 – Competition for Exclusive Rights – R’ A. Z. Naiman {audio}
- Kitzur 62:13 – Taking Someone’s Job – Rav Abba Zvi Naiman {audio}
- Kitzur 62:13 – Taking Someone’s Employee – Rav A. Z. Naiman {audio}
- Kitzur 62:13 – The Camp Counselors – Rav Abba Zvi Naiman {audio}
- Kitzur 62:14 – Taking Winning Lottery Ticket – Rav A. Z. Naiman {audio}