Kameda Masato, Maruyama Hiroshi, Maeda Naoko. Public Attitudes and Behaviors towards Brown Bears in Assabu and Oshamambe. Memoirs of the Muroran Institute of Technology. 2007. 57. 1-15
Maruyama Hiroshi. Notes for EGEO 423 Pacific Rim :Sustainable Environment. Memoirs of the Muroran Institute of Technology. 2003. 53. 47-58
Kameda Masato, Maruyama Hiroshi. Public attitudes and behaviors towards brown bears in the Oshima peninsula. Memoirs of the Muroran Institute of Technology. 2003. 53. 65-76
MARUYAMA Hiroshi. College Education Improving the Relationship between Technology and Society An Attempt in our Social Sciences Course. Memoirs of the Muroran Institute of Technology. 1997. 47. 17-25
MARUYAMA Hiroshi. Critical Study on Environmental Issues as Social Dilemmas-with special reference to Hirose's remarks. Memoirs of the Muroran Institute of Technology. Cultural science. 1996. 46. 1-15