Gaya APA

Ardi, H. (1990). The control and preventive of cataracs : high risk factors on the age of 30 years and over in coastal and Subarban area in Padang, West Java . Padang: Puslit UNAND, Badan Litbangkes.

Gaya MLA

Ardi, Hafid. "The control and preventive of cataracs : high risk factors on the age of 30 years and over in coastal and Subarban area in Padang, West Java". Padang: Puslit UNAND, Badan Litbangkes, 1990. print.