Thực đơn
Opera_tại_Việt_Nam Tham khảoThực đơn
Opera_tại_Việt_Nam Tham khảoLiên quan
Opera Opera Việt Nam Opera (trình duyệt web) Opera Nova Bydgoszcz Opera Software Operation Mincemeat (phim) Opera Mini Opera GX (trình duyệt web) Operação Prato Opera LeśnaTài liệu tham khảo
WikiPedia: Opera_tại_Việt_Nam https://www.vnam.edu.vn/NewsDetail.aspx?lang=&Item... https://web.archive.org/web/20221003105919/https:/... https://www.worldcat.org/oclc/682149444 https://www.worldcat.org/title/682149444 https://www.google.com.vn/books/edition/Viet_Nam/m... https://www.vnam.edu.vn/NewsDetail.aspx?lang=&Item... https://books.google.com.vn/books/about/Acting.htm... https://www.vnam.edu.vn/rs/Document/2015-LeThiMinh... https://cand.com.vn/dien-dan-van-nghe-cong-an/oper... https://web.archive.org/web/20230103052724/https:/...