TY  - UNPB
N1  - Unpublished
A1  - Wiyati, Tuti
TI  - PPF 6d 23
PB  - Universitas Muhammadiyah Prof. DR. Hamka
AV  - public
UR  - http://repository.uhamka.ac.id/id/eprint/26804/
ID  - repository26804
ER  -