Fahmi, Maulana Robby (2021) Students’ errors in pronouncing English vowels and diphthong : a case study of SEC (Smanik English Club) of SMAN 1 Kendal in the academic year 2019/2020. Undergraduate (S1) thesis, Universitas Islam Negeri Walisongo Semarang.

Addenia, Haura Atma (2020) Figurative language of song lyrics in pathway to english, a textbook for the 11th grade senior high school published by erlangga. Undergraduate (S1) thesis, Universitas Islam Negeri Walisongo Semarang.