Gaya APA

Gontor, U, D. (2019). JIHOH : Journal of Industrial Hygiene and Occupational Health Vol. 4 No. 1, Oktober 2019 (Vol 4 Issue 1, Oktober 2019). Ponorogo: Universitas Darussalam Gontor.

Gaya MLA

Gontor, Universitas, Darussalam. "JIHOH : Journal of Industrial Hygiene and Occupational Health Vol. 4 No. 1, Oktober 2019". Vol 4 Issue 1, Oktober 2019 Ponorogo: Universitas Darussalam Gontor, 2019. TEXT.