kougasetumei (2019-09-27). "『ポピーザぱフォーマー』制作秘話―デジタル製作チーフかく語りき―". Underground Magazine Archives (in Japanese). Archived from the original on 2023-10-29. Retrieved 2023-10-29.
kougasetumei (2019-09-27). "『ポピーザぱフォーマー』制作秘話―デジタル製作チーフかく語りき―". Underground Magazine Archives (in Japanese). Archived from the original on 2023-10-29. Retrieved 2023-10-29.