「ピンキー復活」にネットも沸いた!...でも「お菓子」じゃない? 進化に注目。 [The internet is abuzz with the "Pinky revival"! ... But it's not just a "sweet"? Keep an eye on the evolution.]. Livedoor News (in Japanese). October 23, 2020. Retrieved September 15, 2024.
nissyoku.co.jp
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フレンテ・インターナショナル、「ピンキー」新フレーバー発売でイベント実施 [Frente International holds event to celebrate the release of new flavor of "Pinky"]. The Japan Food Journal (in Japanese). October 9, 2006. Retrieved September 15, 2024.
フレンテ、湖池屋に商号変更 10月、新経営体制移行へ [Frente to change its name to Koikeya, transition to new management structure in October]. The Japan Food Journal (in Japanese). June 24, 2016. Retrieved September 15, 2024.