@article{oai:repository.naro.go.jp:00004745,
 journal = {Sweetpotato Research Front, Sweetpotato Research Front},
 month = {Mar},
 note = {Cover Story:
・In Celebration of the 20th Issue of the Sweetpotato Research Front (SPORF)
Research Paper:
・Healthy Alcoholic Beverage "Pa-Puru" from Purple-Fleshed Sweetpotato
・New Varieties for Dried Sweetpotato Products Hamakomachi and Kyushu No. 137
・Lutein Content of Sweetpotato Leaves
Research News:
・Report of the 2nd International Symposium on Sweetpotato & Cassava},
 pages = {1--6},
 title = {Sweetpotato Research Front No.20},
 volume = {20},
 year = {2006}
}