TY  - UNPB
A1  - Avorizano, Arry
AV  - public
TI  - BAP, Presensi, Nilai Sistem Operasi 4D
UR  - http://repository.uhamka.ac.id/id/eprint/3362/
N1  - Unpublished
PB  - Universitas Muhammadiyah PROF.DR. HAMKA
ID  - repository3362
ER  -