Helfert, Erich A., author
Analisis laporan keuangan = Techniques of financial analysis
Erlangga, 1993
 Buku Referensi
Financial regulation and supervision : a post-crisis analysis
Eddy Wymeersch, Klaus J. Hopt, Guido Ferrarini, editors
Oxford University Press, 2012
 Buku Teks
Grammatical mistakes in translating financial statement analysis textbook
 Artikel Jurnal
Helfert, Erich A., author
Analisis laporan keuangan = Techniques of financial analysis
Erlangga, 1993
 Buku Teks
Dorrance, Graeme S.
National monetary and financial analysis / Graeme S. Dorrance
MacMillan Press , 1978
 Buku Teks