http://repository.uhamka.ac.id/4279/
Syaiful Rohim, Aim
http://repository.uhamka.ac.id/4279/1/The%20effect%20of%20problem%20posting%20and%20think%20fair%20share%20learning%20model%20and%20mathematical%20communication%20skill.pdf
Syaiful Rohim, Aim Peer Review Hasil Penelitian (Jurnal JETL). UHAMKA. (Unpublished)