- natronabi.blogspot.com 2017/07/valve-nedir-…...çıkacak ama baya zaman gerekli çünkü half-life haritalarını yapan Valve Corporation şirketinde çalışan bir ortak Valve Corporation şirketinden ayrıldı.!
- en.newswall.org i/valve-corporationStay up to date on all the latest and breaking news about Valve Corporation, and explore 10+ Articles from many reputable news sources on current events.
- bloomberg.com profile/company/0734523D:USValve Corporation operates as a software company. The Company develops and publishes video games. Valve serves customers in the worldwide.
- videogameschronicle.com companies/valve/Valve Corporation News. Valve facing £656 million UK lawsuit for ‘overcharging 14 million PC players’.
- stringfixer.com tr/Valve_CorporationGenişletme, Kaynak motoru ve Steam (2003–2010). 2003 yılında, Valve Washington , Bellevue'ye taşındı ve Valve Corporation olarak yeniden şirkete katıldı.
- cyclowiki.org wiki/Valve_Corporation«https://znanierussia.ru/articles/Valve_Corporation». ... Источник — http://cyclowiki.org/w/index.php?title=Valve_Corporation&oldid=1802642.
- egamersworld.com blog/the-history-of-valve-…Yanis Varoufakis about the inside organization of Valve: «Many enlightened corporations boast of that they are ready to allow workers spending 10 or 20 percents...
- giantbomb.com valve-corporation/3010-1374/Valve Corporation is well known for their support of user created content. Upon Half-Life's release, fans began making a number of mods for the game...