http://repository.uhamka.ac.id/4341/
Samsul Maarif, SMF
http://repository.uhamka.ac.id/4341/1/Nilai%20Akhir%20Jurnal%20Scopus_Improving%20Junior%20High%20School.pdf
Samsul Maarif, SMF Hasil Peer Reviu Artikel Jurnal Berjudul “Improving Junior High School Students’ Mathematical Analogical Ability Using Discovery Learning Method”. UHAMKA. (Unpublished)