Gaya APA

Arifin, Z. (2012). Common Grammatical Errors in Writing Made by XI-IPS Grade Students of MAN Kunir Blitar . Tulungagung: STAIN Tulungagung.

Gaya MLA

Arifin, Zaenal. "Common Grammatical Errors in Writing Made by XI-IPS Grade Students of MAN Kunir Blitar". Tulungagung: STAIN Tulungagung, 2012. Skripsi.