Analisa laju korosi pipa api5l grade b sebagai penyalur minyak dan gas terhadap lingkungan darat pantai dan laut tengah di area Tanjung Priok = The analysis of corrosion accelerators of pipeline api5l grade b used as oil and gas distributor in the environment of rain water coastal and middle sea water in Tanjung Priok area / Syawalman - Syawalman, author (2016)