TY  - UNPB
A1  - Samsul Maarif, SMF
ID  - repository11993
UR  - http://repository.uhamka.ac.id/id/eprint/11993/
AV  - public
TI  - Cek Turnitin_Is exemplification the one and only way to describe that empty set is subset 
of any sets?
N1  - Unpublished
PB  - UHAMKA
ER  -