1. 1) Manuaba A (2004) Designing humane, competitive and sustainable work system and product. Presented at the National Seminar on Ergonomics, Aplikasi Ergonomi di Industri, UPN, 27 March, Yogyakarta.
2. 2) Manuaba A (2004) Holistic ergonomics approach is a must in automation to attain humane, competitive and sustainable work process and products. Presented at the National Ergonomics Seminar, Application of Ergonomics in Industry, UPN, 27 March, Yogyakarta (in Indonesian).
3. 3) Manuaba A (2004) Ergonomics contribution in development, with special reference to Bali. Presented at 2nd National Ergonomics Seminar, UGM, 9 October, Yogyakarta (Indonesian).
4. 4) Manuaba A (2004) Total approach is a must for small and medium enterprises to attain sustainability working conditions and environment, with special reference to Bali Indonesia. Presented at the International Symposium on Occupational Health in Small-Scale Enterprises and the Informal Sector, 12-15 November, Nagoya.
5. 5) Manuaba A (2003) Holistic design is a must to attain sustainable product. Presented at the National Seminar on Product Design and Development. Industrial Engineering UK Maranata, 4-5 July, Bandung.