"こんにゃくをめぐる事情"(PDF). 農林水産省の公式HP. Ministry of Agriculture, Forestry and Fisheries. Archived from the original(PDF) on 27 December 2021. Retrieved 8 June 2022.
"JAPAN'S TASTY SECRETS". 農林水産省の公式HP. The Ministry of Agriculture, Forestry and Fisheries. Archived from the original on 8 June 2022. Retrieved 8 June 2022.
mlit.go.jp
ktr.mlit.go.jp
"天明3年(1783年)浅間山噴火". www.ktr.mlit.go.jp (in Japanese). Archived from the original on 2022-01-20. Retrieved 2022-04-16.
"こんにゃくをめぐる事情"(PDF). 農林水産省の公式HP. Ministry of Agriculture, Forestry and Fisheries. Archived from the original(PDF) on 27 December 2021. Retrieved 8 June 2022.
"JAPAN'S TASTY SECRETS". 農林水産省の公式HP. The Ministry of Agriculture, Forestry and Fisheries. Archived from the original on 8 June 2022. Retrieved 8 June 2022.