Part I: Invited Lectures. Parametric Excitation in Mechanical Systems; A.H.P. van der Burgh. Generation and Suppression of Radiation by Solitary Pulses; H.C. Chang, et al. Buffeting Problems Modelling by Use of Lifting Surface Methods in Unsteady Aerodynamics with Separation; H. Djojodihardjo. The Influence of an External Force on a Solitary Wave; R. Grimshaw. An Asymptotic Method in Ship Hydrodynamics; A.J. Hermans. Non Classical Solitary Waves; J.C. Saut. Mathematical Modelling of Tidal Motion in Regional Waters of Singapore; N.J. Shankar. Phase Portraits of Quadratic Systems; J.W. Reyn. Part II: Contributed Papers. Microwave Heating: Critical Dependence on Data and Parameters; Andonowati. On the Convergence of Sampled Data Nonlinear System; P. Astuti, et al. Nonlinear Galerkin Methods for Hamiltonian Systems; Comparison of Two Approximation Techniques; F.P.H. van Beckum, et al. On Internal Resonances for a Weakly Nonlinear Beam Equation; G.J. Boertjens, W.T. van Horssen. Genus-Two Solutions to the Kadomtsev-Petviashvili Equation; E. Cahyono, et al. On the Formation of Hotspot in Microwave Heating; D. Chandra, et al. Model Manifolds for Analysing Data of Wave Splitting; E. van Groesen, W.L. IJzerman. Modelling of Sediment Transport and Bathymetric Change in Lemah Abang, Jepara Coastal Waters; S. Hadi, S. Permono. A Double Pendulum in a Wind Field; M.J. Huiskes, A.H.P. van der Burgh. Solution of the Affine Toda Equations as an Initial Value Problem; A.A. Iskandar. Mathematical Modelling of Chlorine Decay in a Contact Tank; A.I.B.MD. Ismail, R.A. Falconer. The Dynamics of a Near- Grazing Oscillator; J. Molenaar, et al. Oscillation Criteria for Second Order Nonlinear Differential Equations; S.M. Nababan. Radiation and Diffraction of Sound From Bodies Mounted on an Infinite Baffle Using Boundary Element Methods; B. Soenarko. A Differential Equation for Filtering of a Stochastic Dynamical System; Tran Hung Thao. General Theory of Relativity Without Christoffel Symbols; Triyanta. A Back-Turning Jet Formed by a Uniform Shallow Stream Hitting a Vertical Wall; L.H. Wiryanto, E.O. Tuck. A Fifth-Order Five-State RK-Method Based on Harmonic Mean; N. Yaacob, B. Sanugi.