Kōkadani kofun
Subtitle: kuni shitei shiseki Yame kofungun
Series: Hirokawa-machi bunkazai chōsa hōkoku -- dai 8-shū; Hirokawa-machi bunkazai chōsa hōkokusho -- dai 8-shū.
Publisher: Hirokawa-machi Kyōiku Iinkai
Published: 1991
Place of publication: Yame-gun Hirokawa-machi
Language: jpn
Number of pages: 114