Zandstra,Matt. (2000). PHP 4 in 24 hours: Matt Zandstra.
Tohutoru Kātū Chicago (17th ed.)Zandstra,Matt. PHP 4 in 24 Hours: Matt Zandstra. Street, Indianapolis, Ind.: SAMS, 2000.
Tohutoro MLA (9th ed.)Zandstra,Matt. PHP 4 in 24 Hours: Matt Zandstra. 2000.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.