Cara uji titik lembek aspal dengan alat cincin dan bola (ring and ball)
Indonesia. Badan Standardisasi NasionalUnknown
Badan Standardisasi Nasional (Jakarta, [2011]) (ind) IndonesianUnknownStandar Nasional Indonesia (SNI)UnknownASPHALT-TESTING-STANDARDS; Box: 7/227; Unknown