Bernfeld, Stephen R.
An Introduction to nonlinear boundary value problems
Academic Press, 1974
 Buku Teks
Problems of Nonlinear Mechanics and Physics of Materials
Springer Cham, 2019
 eBooks
Age, duration of work, noise and vibration in inducing hearing and balance impairments
Medical Journal of Indonesia, 14 (2) April-Juni 2005:101-106, 2005
 Artikel Jurnal
Regularity estimates for nonlinear elliptic and parabolic problems: Cetraro, Italy, 2009
John Lewis, Ugo Gianazza, John Lewis
Springer, 2012
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Age, duration of work, moise and vibration in inudcing hearing and balance impairments cJ. Bashiruddin
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