Methodologies for Tutoring in Procedural Domains. - Carol L. Redfield; Benjamin Bell; Patricia Y. Hsieh; Joseph Lamos; R. Bowen Loftin; David Palumbo (Intelligent Tutoring Systems, 1998)

Web-based modules for programmable logic controller education. - Sheng-Jen (Tony) Hsieh 001; Patricia Y. Hsieh (Comput. Appl. Eng. Educ., 2005)