Ben Prof 1 65/VOL I DNA IB(BX NO 24)
BEN PROF 1/50 VOL. IV DNAIB (BX NO.17)
Ben Prof 1 67/ I DNA IB(BX NO 25)
Ben Prof 1 71/ VOL I DNA IB (BX NO. 25)
BEN PROF 1/50 VOL. VII DNAIB (BX NO.18)
Ben Prof 1 73/ VOL 1A
BEN PROF 1/50 VOL. XI DNAIB (BX NO.19)
Ben Prof 1 84 DNA IB (BX NO. 29)
BEN PROF 1/78 VOL1 DNA IB (BX NO. 28)
Ben Prof 1 86 DNA IB (BX NO 30)