Ben prof 1/ 149A DNA IB (BX NO 51)
Ben Prof 1 188/2 IDN IB (BX NO 64)
Ben Prof 1/202/330
BEN PROF 1/128 VOL.8 DNA IB (BX. NO. 43)
BEN PROF 1/128/VOL.II DNA IB (BX NO.43)
BEN PROF 1/ 149D DNA IB (BX NO. 51)
Ben Prof 1 175/VOL. III IDN IB (BX NO. 58)
Ben Prof 1 182/6 IDN IB (BX NO 63)
Ben prof 1/ 149M DNA IB (BX NO 51)
BEN PROF 1/126b DNA IB (BX. NO. 42)