ATTITUDES AND ATTAINED PROFICIENCY IN EFL: A SOCIOLINGUISTIC STUDY OF ADULT JAPANESE SPEAKERS 論文 Tetsuro Chihara・John W. Oiler ·1978-07-01 ·『Language Learning』 28(1) pp. 55-68 doi:10.1111/j.1467-1770.1978.tb00304.x
Linguistics and language policies in North Korea 論文 Chin-Wu Kim ·1978-01-01 ·『Korean studies』 2(1) pp. 159-175 doi:10.1353/ks.1978.0002