Não informado. (2022). NTT Technical Review. Telecommunications Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. NTT Technical Review. Tokyo: Telecommunications Association, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. NTT Technical Review. Telecommunications Association, 2022.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.