Bambang Yulianto, Universitas Negeri Surabaya, Indonesia (Google Scholar, Sinta ID ; 5988839)
Shoim Anwar, Universitas PGRI Adi Buana Surabaya, Indonesia (Google Scholar)
Kaswadi, Universitas Wijaya Kusuma Surabaya, Indonesia (Google Scholar, Sinta ID ; 5983819)
Sutejo, STKIP PGRI Ponorogo, Indonesia (Google Scholar)
Hetty Purnamasari, Universitas Dr. Soetomo, Indonesia (Google Scholar)