1. Department of Nutrition, Poltekkes Kemenkes Pontianak, Pontianak, Indonesia
2. Department of Environmental Health, Poltekkes Kemenkes Pontianak, Pontianak, Indonesia
3. Post Graduate of Department of Parasitology and Microbiology, Medicine Faculty, Universitas Padjadjaran, Bandung, Indonesia
4. Department of Medical Laboratory Technology, Poltekkes Kemenkes Banten, Serang, Indonesia