Identifikasi fluida berdasarkan analisis atenuasi energi wavelet berbasis short time fourier transfrom, continuous wavelet transform dan stockwell transform = Fluid identification based on wavelet energy attenuation analysis with short time fourier transform, continuous wavelet transform and stockwell transform - Cakra Nurjaya, author (Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2011)