Spelling improvement : a program for self-instruction

Statistical concepts : a program for self instruction

English review manual program for self-instruction

Kapita selekta statistik kedokteran : program belajar sendiri = a review of biostatistics; a program for self-instruction

Proses akonting : buku berprogram untuk belajar sendiri = The Accounting process : a program for self-instruction; penerjemah, Siswanto Sutojo