Pengarang : Richard E. Baker {et.al} - Theodore E. Christensen - David M. Cottrell - Kurnia Irwansyah Rais -

Pengarang : Richard E. Baker {et.al} - Valdean C. Lembke - Thomas E. King - Cynthia G. Jeffrey -

Pengarang : Myrtle W. Clark - Jack M. Cathey - Richard G. Schroeder -

Pengarang : Singer, Richard G -

Pengarang : Salazar, laura F - Crosby, Richard A - Diclemente, Ralph J -

Pengarang : Honeycutt, Richard A. -

Pengarang : Kenneth Holmqvist {et.al} - Marcus Nystrom - Richard Andersson - Richard Dewhurst - Halszka Karodzka - Joost Van De Weijer -

Pengarang : Jaeger, Richard C -

Pengarang : Boresi, Arthur P. - Schmidt, Richard J. - Sidebottom, Omar M. -

Pengarang : Epstein, Richard A -