Supreya Trivijitkasem, Adisak Boonchun, Chirawat Chantharangsi, and Chutima Paksunchai, “Analytical Study of AC Magnetic Susceptibility of (Bi, Pb) Sr-Ca-Cu-O Superconducting Systems Using Bean Critical State Model”, Agr. Nat. Resour., vol. 43, no. 5, pp. 353–359, Dec. 2009.