REFERENSI

DAFTAR JURNAL

Judul Deskripsi Kategori
Penn State University Penn State University Online Library
Penn State University - Erie Penn State University - Erie Online Library
Penn State University - Great Valley Penn State University - Great Valley Online Library
Penn State University - Harrisburg Penn State University - Harrisburg Online Library
Penn State University - Hazleton Penn State University - Hazleton Online Library
Penn State University - New Kensington Penn State University - New Kensington Online Library
Pennsylvania Institute of Technology Pennsylvania Institute of Technology Online Library
Philadelphia University Philadelphia University Online Library
Shippensburg University Shippensburg University Online Library
Slippery Rock University Slippery Rock University Online Library
Susquehanna University Susquehanna University Online Library
Swarthmore College Swarthmore College Online Library
Temple University Temple University Online Library
Temple University - Ambler Temple University - Ambler Online Library
Thomas Jefferson University Thomas Jefferson University Online Library
University of Pennsylvania University of Pennsylvania Online Library
University of Pittsburgh University of Pittsburgh Online Library
University of Pittsburgh - Bradford University of Pittsburgh - Bradford Online Library
University of Pittsburgh - Greensburg University of Pittsburgh - Greensburg Online Library
University of Pittsburgh - Johnstown University of Pittsburgh - Johnstown Online Library

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