http://repository.uhamka.ac.id/id/eprint/17026/
Disertasi Gufron
Gufron Amirullah, Gufron
http://repository.uhamka.ac.id/id/eprint/17026/1/2.%20DISERTASI%20%20UJIAN%20TERBUKA_GUFRON%20FINAL.pdf
Fans Buya Hamka
http://repository.uhamka.ac.id/id/eprint/17026/
Disertasi Gufron
Gufron Amirullah, Gufron
http://repository.uhamka.ac.id/id/eprint/17026/1/2.%20DISERTASI%20%20UJIAN%20TERBUKA_GUFRON%20FINAL.pdf