Aplikasi dekomposisi spektral smoothed pseudo wigner-ville distribution (SPWVD) untuk mengidentifikasi reservoar shale: Studi kasus Lapangan Abiyoso, Cekungan Sumatera Selatan = Application of spectral decomposition with smoothed pseudo wigner-ville distribution (SPWVD) method for identification shale reservoir: A Case study in Abiyoso Field, South Sumatera Basin - Suhendra, author (Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2012)