Ningrum, Ary Setya B., and Rohmat Agung Wibowo. 2017. “Intelligence Quotient (IQ) As a Predictor of Reading Comprehension and Writing Achievement of EFL Learners”. JEELS (Journal of English Education and Linguistics Studies) 4 (1):53-79. https://doi.org/10.30762/jeels.v4i1.331.