Sugiyanto, S., Rohmawati, D., Arisa, L.A., Candra, P.F.S. and Syaputri, E.E.A. 2024. BATIK MOTIFS FROM WAVE EQUATIONS WITH VARIATIONS OF NEUMANN BOUNDARY CONDITIONS . Sunan Kalijaga Journal of Applied Mathematics. 2, 2 (Oct. 2024), 50–57.