# SOURCES OF VARIATION IN SECOND AND NATIVE LANGUAGE SPEAKING PROFICIENCY AMONG COLLEGE-AGED SECOND LANGUAGE LEARNERS

> Research article (Studies in Second Language Acquisition, 2021) · cited 10× · AI/ML

**Wikidata**: [openalex:W3177377896](https://www.wikidata.org/wiki/openalex:W3177377896)  
**Source**: https://4ort.xyz/entity/sources-of-variation-in-second-and-native-language-speaking-proficiency-among-college-aged-second-language-learners