The World Health Organization (WHO) recently released a document detailing how one can create a batch of handrub gels! Read more: https://www.who.int/gpsc/5may/Guide_to_Local_Production.pdf

Raise The Roof!: Bakit Metal Roofing Pa Rin Ang Preferred Na Bubong Sa Pilipinas?
Ever wondered why nearly every roof you see in a barangay or along provincial highways