펜 (Korean Wikipedia)

Analysis of information sources in references of the Wikipedia article "펜" in Korean language version.

refsWebsite

Global rank Korean rank

1merriam-webster.com

209^th place

116^th place

1howstuffworks.com

840^th place

977^th place

howstuffworks.com

science.howstuffworks.com

“How does a ballpoint pen work?”. 《Engineering》. HowStuffWorks. 1998–2007. 2007년 11월 16일에 확인함.

merriam-webster.com

Pen. Merriam-Webster Dictionary