http://repository.uhamka.ac.id/id/eprint/13315/
BAP, Daftar Kehadiran, Daftar Nilai
Azhar, Ervin
http://repository.uhamka.ac.id/id/eprint/13315/1/1.%20Teori%20Peluang%203A_BAP%2BAbsen%2BNilai.pdf
Jurnal Ekonomi
http://repository.uhamka.ac.id/id/eprint/13315/
BAP, Daftar Kehadiran, Daftar Nilai
Azhar, Ervin
http://repository.uhamka.ac.id/id/eprint/13315/1/1.%20Teori%20Peluang%203A_BAP%2BAbsen%2BNilai.pdf