Anindhita, R. and Harismah, K. (2021) “Development of Natural Materials Gondorukem with Petroleum Ether, Anchor with Water as Fossil Conservation Materials”, Prosiding University Research Colloquium, pp. 22–29. Available at: https://repository.urecol.org/index.php/proceeding/article/view/1768 (Accessed: 18 May 2024).