Matematika Universitas

 Ayres Jr., Frank; Schmidt, Philip A.; Bondan, Alit;

Semarang : Erlangga , 2004

Schaum's outlines of aljabar elementer

 Simarmata, Lemeda; Gressando, Julian; Schmidt, Philip A.; Rich, Barnett;

Jakarta : Erlangga , 2009

Geometri

 Hardani, Wibi; Harmein, Irzam; Schmidt, Philip A.; Hademenos, George J.; Rich, Barnett;

Jakarta : Erlangga , 2004

Matematika universitas

 Simarmata, Lemeda; Schmidt, Philip A.; Hademenos, George J.; Ayres, Frank; Silaban, Chrisman;

Jakarta : Erlangga , 2006