Source: https://www.researchgate.net/profile/Ramli-Ramli-2/publication/350412133_Using_The_Jakarta_Post_Daily_News_To_Improve_Academic_English_Vocabulary_of_The_United_English_Forum_UEF_Members_In_Makassar/links/605e6427a6fdccbfea0b42c0/Using-The-Jakarta-Post-Daily-News-To-Improve-Academic-English-Vocabulary-of-The-United-English-Forum-UEF-Members-In-Makassar.pdf