Fikran, F., & Geraldi Simon, C. (2026). Pengaruh Orientasi Sudut Terhadap Kekuatan Bending Dan Ketangguhan Komposit Serat Sisal Bermatriks Polyester . Science and Education Journal (SICEDU), 5(2), 3699–3707. https://doi.org/10.31004/sicedu.v5i2.870