Gaya APA

MAULIDYA, A. (2014). Using Problem Based Learning To Improve Writing Skills Of Student Of SMP Islam Sunan Gunung Jati Ngunut . Tulungagung: IAIN Tulungagung.

Gaya MLA

MAULIDYA, ALIFFATUL. "Using Problem Based Learning To Improve Writing Skills Of Student Of SMP Islam Sunan Gunung Jati Ngunut". Tulungagung: IAIN Tulungagung, 2014. Skripsi.