Leng Tan, Margaret (1997). "The art of the toy piano". Dunvagen Music Publishers. Archived from the original on 3 March 2015. Retrieved 20 February 2015.
sandiegoreader.com
Good, Dave (4 September 2012). "M175 T69: Not Child's Play". San Diego Reader. Archived from the original on 12 June 2018. Retrieved 20 February 2015.
Good, Dave (4 September 2012). "M175 T69: Not Child's Play". San Diego Reader. Archived from the original on 12 June 2018. Retrieved 20 February 2015.
Leng Tan, Margaret (1997). "The art of the toy piano". Dunvagen Music Publishers. Archived from the original on 3 March 2015. Retrieved 20 February 2015.
