Penentuan matriks almost strictly sign regular (ASSR) dengan dekomposisi QR = On the identification of almost strictly sign regular matrices through QR decomposition

Perhitungan matriks dengan fortran

Teori dan soal-soal differensial dan integral kalkulus =Theory and problems of differential and integral calculus

Schaum's outlines : teori dan soal-soal matematika Universitas = Schaum's Outline of the theory and problems of college mathematics

Teori dan soal-soal matriks : versi S1/metrik=Theory and problems of matrices-S1 (metric)