Saburo Otsubo's Kaihin is recorded as a 1966 Tanka Kenkyu Newcomer Award-winning work. No publication information was found for it as a standalone book, paperback, or poetry collection.

Saburo Otsubo's winning work recorded for the ninth Tanka Kenkyu Newcomer Award.

Eiichi Otsuka's Ohan is a tanka collection published by Tanka Kenkyusha in 1968 as volume 64 of the Hodo series. It shares its title with the work recorded for the 1966 Tanka Kenkyu Newcomer Award and gathers the author's tanka in book form.

A tanka collection by Eiichi Otsuka published as part of the Hodo series.