Ibrado, A. J. N. POEtent Perl (Part 1 of 3): Perl multitasking made easy. PC World Philippines.
Cita Chicago Style (17a ed.)Ibrado, Alex Jonathan N. "POEtent Perl (Part 1 of 3): Perl Multitasking Made Easy." PC World Philippines .
Cita MLA (9a ed.)Ibrado, Alex Jonathan N. "POEtent Perl (Part 1 of 3): Perl Multitasking Made Easy." PC World Philippines, .
Precaución: Estas citas no son 100% exactas.