Japanese Anthropological Research on Africa 論文 Philip M. Peek ·1990-04-01 ·『African Studies Review』 33(1) pp. 93-93 doi:10.2307/524629
Language Choice in Intervention With Bilingual Children 論文 Vera F. Gutiérrez‐Clellen ·1999-11-01 ·『American Journal of Speech-Language Pathology』 8(4) pp. 291-302 doi:10.1044/1058-0360.0804.291