Папир — разлика између измена

* -{[http://www.tappi.org Technical Association of the Pulp and Paper Industry]}-

* -{[http://www.straightdope.com/mailbag/mpapermaking.html How is paper made?], www.straightdope.com}-

* {{britannica|441928}}

* -{[https://www.youtube.com/watch?v=E4C3X26dxbM Thirteen-minute video on modern paper production system]}-