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van Asch, Gerrit (19 June 1880). "Report of Mr. Van Asch, Institution for the Deaf and Dumb, Sumner". Appendix to the Journals of the House of Representatives, 1880 Session I, H-01e. AtoJs Online. Deaf and Dumb Institution (Further Papers Relating To). Wellington, New Zealand: House of Representatives. No 2. Retrieved 4 December 2020.
van Asch, Gerrit (May 1886). "Directors Report". Appendix to the Journals of the House of Representatives. 1886 Session I, E-04 (Education: Institution for Deaf-Mutes. [In Continuation of E.-4, 1885.]). Wellington, New Zealand: House of Representatives. No 2. Retrieved 5 December 2020.
Stephens, J. E. (13 April 1907). "Report of the Director, School for Deaf-Mutes, Sumner". Appendix to the Journals of the House of Representatives. 1907 Session I, E-04 (Education: School for Deaf=Mutes. [In continuation of E.-4, 1906.]). No 2. Retrieved 5 December 2020.
Stephens, J. E. (24 April 1908). "Report of the Director, School for the Deaf, Sumner". Appendix to the Journals of the House of Representatives. 1908 Session I, E-04 (Education: School for the Deaf. [In continuation of E.-4, 1907.]). House of Representatives. No 2.
paperspast.natlib.govt.nz
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