This study aimed at investigating the outcomes of the cooperation practices, which were utilized to enhance the quality of work-integrated learning at Nong Khai Technical College. The investigation covered the following three aspects: 1) the changes that had arisen from the development of specified indicators; 2) the learning that occurred, and 3) the body of knowledge, which had been obtained from the practice. A participatory action research methodology was adopted during two semesters. There were 19 teachers and 30 students involved in the project. The results of the study revealed three key features. Firstly, the post-practice evaluation in both the first and the second cycles was higher than in the pre-practice evaluation. Secondly, the researcher, research participants and the college learned from various issues of the practice. This learning included gaining an awareness of the importance of collaborative work, the importance of studying the theoretical perspective in order to enhance the existing knowledge and experiences, and the importance of planning, practice, observation, and reflection in comprehensive work. Finally, the knowledge gained was found to correlate with Kurt Lewin's Force-Field Analysis which consists of the following elements: 1) expected change, 2) driving factors for change, 3) resistance to change, and 4) overcoming resistance.