FERENCOVÁ, Elena - KUKUROVÁ, Elena. Questionnaire as one of the forms used for quality of teaching evaluation. In Physics 2009 : proceedings of scientific works, Nitra Slovak Republic, October 2009. Nitra : Slovak University of Agriculture, 2009. ISBN 978-80-552-0264-8. . Dostupné na internete:<http://www.slpk.sk/eldo/2010/zborniky/004-10/ferencova.pdf>