(@on999_hk) • photos and videos

on999A sn on a beach in Whitstable, United Kingdom, advising readers to dial 999 and to request for the coastguard in the event of an emergency. 999 is an official emergency telephone numberON999 EJournal Lembaga Einstein College adalah jurnal akses terbuka yang mempublikasikan artikel ilmiah di bidang ilmu kimia dan pendidikan kimia.