Excel to PDF via VBA Macro

https://social.msdn.microsoft.com/Forums/en-US/27ac7ece-e1af-4155-bf4b-c5cba7a08eb7/macro-to-create-excel-data-to-pdf-file?forum=exceldev

Responsive Email Template Editor

https://github.com/voidlabs/mosaico

Unstructured Supplementary Service Data

https://en.wikipedia.org/wiki/Unstructured_Supplementary_Service_Data

https://www.weforum.org/agenda/2018/08/how-a-20-year-old-mobile-technology-protocol-is-revolutionizing-africa/

ReactJS MongoDB

https://www.mongodb.com/blog/post/the-modern-application-stack-part-5-using-reactjs-es6-and-jsx-to-build-a-ui-the-rise-of-mern


https://www.npmjs.com/package/react-native-local-mongodb

Log4j: JMSAppender

http://activemq.2283324.n4.nabble.com/Log4J-ActiveMQ-JMS-Appender-td2345638.html

https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/net/JMSAppender.html