| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| • | SABS - SOUTH AFRICAN BUREAU OF STANDARDS (SUDAFRICA) | |
| • | SAC - STANDARIZATION ADMINISTRATION OF THE PEOPLE'S REPUBLIC OF CHINA | |
| • | SAE - SOCIETY OF AUTOMOTIVE ENGINEERS (ESTADOS UNIDOS) | |
| • | SAI GLOBAL - STORE | |
| • | SAIJ - SISTEMA ARGENTINO DE INFORMACION JURIDICA | |
| • | SASO - SAUDI ARABIAN STANDARDS ORGANIZATION (ARABIA SAUDITA) | |
| • | SATRA TECHNOLOGY CENTRE (REINO UNIDO) | |
| • | SCC / CCN - STANDARDS COUNCIL OF CANADA / CONSEIL CANADIEN DES NORMES (CANADA) | |
| • | SCHOLARPEDIA | |
| • | SCICENTRAL | |
| • | SCIDEV.NET | |
| • | SCIELO - SCIENTIFIC ELECTRONIC LIBRARY ONLINE | |
| • | SCIENCE.GOV | |
| • | SCIENCECINEMA | |
| • | SCIENCEDIRECT | |
| • | SCIENCERESEARCH.COM | |
| • | SCIENSEEK | |
| • | SCOPUS | |
| • | SCOUT REPORT | |
| • | SCOUT REPORT ARCHIVES | |
| • | SD GATEWAY | |
| • | SDBS - INTEGRATED SPECTRAL DATA BASE SYSTEM FOR ORGANIC COMPOUNDS | |
| • | SEARCH ENGINE COLOSSUS | |
| • | SECRETARIA DE COMUNICACION Y PRENSA | |
| • | SECRETARIA DE INDUSTRIA Y COMERCIO | |
| • | SECRETARIA DE POLITICAS UNIVERSITARIAS | |
| • | SEFA - SCIENTIFIC EQUIPMENT AND FURNITURE ASSOCIATION (ESTADOS UNIDOS) | |
| • | SEGEMAR - SERVICIO GEOLOGICO MINERO ARGENTINO | |
| • | SELECTSCIENCE | |
| • | SELLO BUEN DISENO ARGENTINO - PLAN NACIONAL DE DISENO | |
| • | SENASA - SERVICIO NACIONAL DE SANIDAD Y CALIDAD AGROALIMENTARIA | |
| • | SENCAMER - SERVICIO AUTONOMO NACIONAL DE NORMALIZACION, CALIDAD, METROLOGIA Y REGLAMENTOS TECNICOS (VENEZUELA) | |
| • | SEPYME- SECRETARIA DE LA PEQUENA Y MEDIANA EMPRESA Y DESARROLLO REGIONAL | |
| • | SERVICIO METEOROLOGICO NACIONAL | |
| • | SFS - FINNISH STANDARDS ASSOCIATION (FINLANDIA) | |
| • | SHERPA/ROMEO - PUBLISHER COPYRIGHT POLICIES AND SELF-ARCHIVING | |
| • | SHOEINFONET | |
| • | SIGMA-ALDRICH | |
| • | SII - STANDARDS INSTITUTION OF ISRAEL (ISRAEL) | |
| • | SIM - SISTEMA INTERAMERICANO DE METROLOGIA | |
| • | SINEC - SISTEMA INTEGRAL DE NORMAS Y EVALUACION DE LA CONFORMIDAD - NORMAS OFICIALES MEXICANAS (NOM) Y NORMAS MEXICANAS (NMX) | |
| • | SINONIMOS.ORG | |
| • | SIRI MSDS INDEX | |
| • | SIS - SWEDISH STANDARDS INSTITUTION (SUECIA) | |
| • | SISBI - SISTEMA DE BIBLIOTECAS Y DE INFORMACION, UNIVERSIDAD DE BUENOS AIRES | |
| • | SISTEMA INTEGRADO DE INFORMACION AGROPECUARIA | |
| • | SKUOLA.NET - DOCENTI | |
| • | SLA - SPECIAL LIBRARIES ASSOCIATION | |
| • | SNV - SCHWEIZERISCHE NORMEN-VEREINIGUNG (SUIZA) | |
| • | SOCIEDAD ARGENTINA DE APICULTORES | |
| • | SOCIEDAD ARGENTINA DE INFORMACION | |
| • | SOURCEFORGE.NET | |
| • | SOUTH AFRICAN JOURNAL OF INFORMATION MANAGEMENT | |
| • | SOUTH AFRICAN NATIONAL ETD PORTAL | |
| • | SPE - SOCIETY OF PETROLEUM ENGINEERS. | |
| • | SPRINGERLINK | |
| • | SRA - SOCIEDAD RURAL ARGENTINA | |
| • | SSRN - SOCIAL SCIENCE RESEARCH NETWORK | |
| • | SSSA - SOIL SCIENCE SOCIETY OF AMERICA | |
| • | STUDIES IN BIBLIOGRAPHY | |
| • | SUPERINTENDENCIA DE RIESGOS DEL TRABAJO | |
| • | SUTN - SLOVAK INSTITUTE FOR STANDARDIZATION (ESLOVAQUIA) | |
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |