http://www.s-p.sg/ Download this publisher's e-journal holdings (xlsx) Content Type OA ? PCA ? Journals Yes N/A Request a holdings comparison Portico provides a free holdings comparison service to compare a library’s journal or book holdings to the Portico archive. Search titles and ISSNs by keyword: Show: E-Journals All0-9ABCDEFGHIJKLMNOPQRSTUVWXYZ Titles start with M (2) ISSN Status Modern Electronic Technology 2591-7110, 2591-7129 preserved Modern Surveying & Mapping Engineering 2705-0521 preserved