Paucar Calva, V. A. (2015). Questioning as strategy to improve speaking skill in the english language learning with students of second and third years of basic education at “Dr. Luis Emilio Rodriguez” school. Academic year 2013-2014.
Čikaški stil citiranja (17. izdanje)Paucar Calva, Vanesa Alexandra. Questioning as Strategy to Improve Speaking Skill in the English Language Learning with Students of Second and Third Years of Basic Education at “Dr. Luis Emilio Rodriguez” School. Academic Year 2013-2014. 2015.
MLA način citiranja (9. izdanje)Paucar Calva, Vanesa Alexandra. Questioning as Strategy to Improve Speaking Skill in the English Language Learning with Students of Second and Third Years of Basic Education at “Dr. Luis Emilio Rodriguez” School. Academic Year 2013-2014. 2015.