Ben prof 1/152/vol.IV DNA IB (BX NO 52)
Ben Prof 1 111/1 IDN IB (BX NO. 35)
Ben Prof 1/112 vol III DNA IB (BX no. 35)
Ben Prof 1/112 vol III DNA IB (BX no. 35)
BEN PROF 1/110 DNA IB (BX NO.35)
BEN PROF 1/113 VOL.17 DNA IB (BX. NO. 36)
Ben Prof 1 202/133 VOL. II IDN IB (BX NO. 73)
Ben Prof 1 202/159 VOL. II IDN IB (BX NO. 73)
Ben Prof 1 202/169 VOL II IDN IB (BX NO. 73)
BEN PROF 1/ 202/236 DNA IB (BX NO. 74)