Saleh A, Anggraini M. PENGARUH PENAMBAHAN ABU TANDAN KOSONG KELAPA SAWIT (TKKS) TERHADAP NILAI PENETRASI INDEKS ASPAL PERTAMINA PEN.60/70. Siklus [Internet]. 2016Oct.3 [cited 2024Apr.20];2(2). Available from: https://journal.unilak.ac.id/index.php/SIKLUS/article/view/353