BEN PROF 1/21 DNA IB (BX NO. 1)
Ben Prof 1 22/VOL III DNA IB (BX NO 2)
BEN PROF 1/4 DNA IB (BX NO. 1)
BEN PROF 1/44 VOL. VIII DNA IB (BX NO. 11)
BEN PROF 1/44 VOL. XI DNA IB (BX NO. 11)
Ben Prof 1 46/1 DNA IB (BX NO. 15)
Ben Prof 1 48/VOL IV DNA IB (BX NO. 16)
BEN PROF 1/45 VOL.IV DNA IB (BX NO.12)
Ben Prof 1 48/VOL VIII DNA IB (BX NO 16)
BEN PROF 1/45 VOL.V DNA IB (BX NO. 12)