“ma1 (cmn)” — suara Chen Wang 王琛; koleksi Wang Chen, Hugo Lopez, Nicolas Vion, © 2013. Sumber: audio-cmn / zh_syllabs. Lisensi CC BY-SA 3.0. Rekaman tidak diubah.
https://github.com/hugolpz/audio-cmn/blob/ff9ed3d0c631195bd2c06f39450f3264c7124040/64k/syllabs/cmn-ma1.mp3
https://creativecommons.org/licenses/by-sa/3.0/

“ma3 (cmn)” — suara Chen Wang 王琛; koleksi Wang Chen, Hugo Lopez, Nicolas Vion, © 2013. Sumber: audio-cmn / zh_syllabs. Lisensi CC BY-SA 3.0. Rekaman tidak diubah.
https://github.com/hugolpz/audio-cmn/blob/ff9ed3d0c631195bd2c06f39450f3264c7124040/64k/syllabs/cmn-ma3.mp3
https://creativecommons.org/licenses/by-sa/3.0/

“ma4 (cmn)” — suara Chen Wang 王琛; koleksi Wang Chen, Hugo Lopez, Nicolas Vion, © 2013. Sumber: audio-cmn / zh_syllabs. Lisensi CC BY-SA 3.0. Rekaman tidak diubah.
https://github.com/hugolpz/audio-cmn/blob/ff9ed3d0c631195bd2c06f39450f3264c7124040/64k/syllabs/cmn-ma4.mp3
https://creativecommons.org/licenses/by-sa/3.0/

"Zh-má.ogg" (má / 麻) — Yue Tan, (c) 2009 Yue Tan, Shtooka Project cmn-caen-tan; Wikimedia Commons. CC BY-SA 3.0 US. Original OGG retained unchanged. Compatible MP3 is a format conversion, with no pitch or tempo editing.
https://commons.wikimedia.org/wiki/File:Zh-m%C3%A1.ogg
https://creativecommons.org/licenses/by-sa/3.0/us/
Owner acceptance is scoped to four exact files, not teacher certification or review of other audio.