Frontline. PBS. Retrieved one February 2014. Interactive net web-site companion to a Frontline documentary checking out the pornography business within just the United States. Mythlore. Mythopoeic Society. two (130): 45-61. JSTOR 26816084. Retrieved November 2, 2020 - through JSTOR. Milligan, Amanda (24 October 2020). "Dwell Time: What is Is It and Why Does it Matter?". Hern, Alex (25 October 2017).