الوصول الحر: http://www.dloc.com/CA00800003/00001/citationTest
الإتاحة: http://digital.libraries.psu.edu/cdm/ref/collection/arthist2/id/33222Test
الإتاحة: http://digital.libraries.psu.edu/cdm/ref/collection/arthist2/id/32423Test
الإتاحة: https://doi.org/10.24036/02022112119738-0-00Testhttp://ejournal.unp.ac.id/index.php/konselor/article/view/119738Test