GRAMMAR & MULYANTO, A. [. Grammar IV for TOEFL practice test preparation. UMP.
芝加哥风格引文GRAMMAR 与 Agus [ed] MULYANTO. Grammar IV for TOEFL Practice Test Preparation. Surakarta: UMP.
MLA引文GRAMMAR 与 Agus [ed] MULYANTO. Grammar IV for TOEFL Practice Test Preparation. UMP.
警告：这些引文格式不一定是100％准确.