BEN PROF 1/109 VOL.I DNA IB (BX. NO. 35)
BEN PROF 1/110 DNA IB (BX NO.35)
BEN PROF 1/ 113 VOL. 18 DNA IB (BX NO. 36)
Ben Prof 1 202/136 VOL II IDN IB (BX NO. 73)
BEN PROF 1/ 202/227 DNA IB (BX NO. 74)
BEN PROF 1/ 202/234 DNA IB (BX NO. 74)
Ben Prof 1 202/167 VOL II IDN IB (BX NO. 73)
BEN PROF 1/ 202/235 DNA IB (BX NO. 74)
BEN PROF 1/ 202/247 DNA IB (BX. NO. 74)
Ben Prof 1 202/175 VOL. II IDN IB (BX NO. 73)