- Facilitated academic assistance to more than 20 students by teaching the use of tools and materials commonly used in assessing the quality of the work environment, which contributed to the improvement of students' understanding, as more than 80% of mentored students got A grades.- Administered students' assignment grades and practical exams, thus helping the efficiency and effectiveness of lecturers' work.

- Translated more than 200 English children's stories into Indonesian and helped non-English speakers understand the message of the stories.- Planned work schedules that help improve work effectiveness and efficiency.

- Coordinated with Surabaya City health department officers, health center officers, and more than 20 Surabaya City health cadres in conducting sanitation survey activities and contributed to accelerating survey activities.- Examined the sanitation conditions of more than 1000 households and reported the results of the sanitation survey, which assisted the Surabaya city government in determining future sanitation programs.- Conducted research on household waste management that helps the community and local community leaders to identify household waste problems and find alternative activities that can solve the problems.