Плафон — разлика између измена

* [http://en.wiktionary.org/wiki/ceiling Дефиниција плафона - Енглески речник]

* [http://www.merriam-webster.com/dictionary/ceiling ''"Merriam-Webster"'' дефиниција плафона]

* [https://web.archive.org/web/20131105160731/http://www.e-jednakost.org.rs/download/Stakleni_plafon.pdf Стаклени плафон]

* {{cite EB1911|wstitle=Ceiling |volume=5 |short=x}}

* {{cite NIE|wstitle=Ceiling|year=1904|short=1}}

* -{[https://web.archive.org/web/20110916224014/http://www.virtualmuseum.ca/Exhibitions/Basilica/en/construction/ceiling_construction.html Virtualmuseum.ca treatise on ceiling construction]}-