Gaya APA

SNI, . (2022). Metode uji pH tanah Standard test method for pH of soils (ASTM D 4972-01 (2007), IDT) . : SNI.

Gaya MLA

SNI, . "Metode uji pH tanah Standard test method for pH of soils (ASTM D 4972-01 (2007), IDT)". : SNI, 2022. Text.