Internationale Federation of Mpodern Language Teachers & Filipovic, R. (1972). Active methods and modern aids in the teaching of foreign languages; papers from the tenth congress of the Federation internationale des professeurs de langues vivantes. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternationale Federation of Mpodern Language Teachers और Rudolf Filipovic. Active Methods and Modern Aids in the Teaching of Foreign Languages; Papers from the Tenth Congress of the Federation Internationale Des Professeurs De Langues Vivantes. London: Oxford University Press, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInternationale Federation of Mpodern Language Teachers और Rudolf Filipovic. Active Methods and Modern Aids in the Teaching of Foreign Languages; Papers from the Tenth Congress of the Federation Internationale Des Professeurs De Langues Vivantes. Oxford University Press, 1972.