http://repository.uhamka.ac.id/id/eprint/13204/
BAP, Daftar Hadir, Nilai Adityo Ari Wibowo Metodologi Riset 5D
Adityo, Ari Wibowo
http://repository.uhamka.ac.id/id/eprint/13204/1/BAP%20Kehadiran%20Nilai%20Adityo%20Ari%20Wibowo%20Metodologi%20Riset%205D.pdf