While all walkthroughs on this site are written based on first-hand personal experiences, the following websites have been useful as references, so feel free to check them out. (Content of external links beyond my control, visit at your own risks.)
Other statistical data are compiled and translated directly from the game itself, with missing bits of information, where applicable, filled in from official and wiki sources.
그라나도 에스파다
official website for kGE
플레이포럼
kGE portal
Granado Espada
official website for sGE
卓越之剑
official website for cGE
王者之劍
official website for twGE
2ch Wiki
unofficial jGE wiki resource
GE計算機
unofficial jGE damage calculator
GE Cybac
unofficial jGE information site
散歩道。
kGE fansite (Japanese)