http://repository.uhamka.ac.id/id/eprint/10742/ BAP-Absen-Nilai Metode penelitian S1 kls 6H Inding, Gusmayadi http://repository.uhamka.ac.id/id/eprint/10742/1/BAP-Absen-Nilai%20Metlit%20Kls%206H.pdf Unduh!