Ahmad Rifa'i Rif'an, author
PT Elex Media Komputindo, 2023
Buku Teks
Carnegie, Dale, 1888-1955, author
Gramedia, 1989
Buku Teks
James, Elaine S.T.
Gramedia, 2004
Buku Teks
Hutagalung, Mangasa Sotarduga, author
Badan Penerbit Kristen, 1971
Buku Teks
Zelinski, Ernie J., author
PPM, 2006
Buku Teks