Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_29 ( species_specific VARCHAR, link VARCHAR, comparative VARCHAR, intra_molecular_structure VARCHAR )

### Question ###
Which Species Specific has a Comparative of no, and an Intra-molecular structure of no, and a Link of sourcecode?

### Accurate SQL ###

SELECT species_specific FROM table_name_29 WHERE comparative = "no" AND intra_molecular_structure = "no" AND link = "sourcecode"