1. 2012a ACTFL glossary http://www.actfl.org/publications/guidelines-and-manuals/actfl-proficiency-guidelines-2012/glossary
2. 2012b ACTFL proficiency guidelines 2012-Speaking http://www.actfl.org/publications/guidelines-and-manuals/actfl-proficiency-guidelines-2012/english/speaking
3. Does measuring L2 utterance fluency equal measuring overall L2 proficiency? Evidence from five languages;Baker-Smemoe;Foreign Language Annals,2014
4. Belnap , R. K. 1987 Al- c Arabiyya 20 29 42
5. ACTFL proficiency guidelines-Speaking (revised 1999);Breiner-Sanders;Foreign Language Annals,2000