Ravichev, S. A. (1997). Pedagogicheskie osnovy monitoringa ėkonomicheskikh znaniĭ uchashchikhs︠i︡a. [In-t povysheni︠i︡a i perepodgot. rabotnikov nar. obrazovani︠i︡a].
Lua i Stíl Chicago (17ú heag.)Ravichev, Sergeĭ Alekseevich. Pedagogicheskie Osnovy Monitoringa ėkonomicheskikh Znaniĭ Uchashchikhs︠i︡a. Moskva: [In-t povysheni︠i︡a i perepodgot. rabotnikov nar. obrazovani︠i︡a], 1997.
Lua MLA (8ú heag.)Ravichev, Sergeĭ Alekseevich. Pedagogicheskie Osnovy Monitoringa ėkonomicheskikh Znaniĭ Uchashchikhs︠i︡a. [In-t povysheni︠i︡a i perepodgot. rabotnikov nar. obrazovani︠i︡a], 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.